- Mark Scheme                                                  /
Question                 Answer              Marks            AO Element             Notes               Guidance
  1(a)      Tangent                            1
 1(b)(i)         final answer                  2                           M1 for
1(b)(ii)    40                                 2                           B1 for angle OBC = 40°
                                                                           or angle BOG = 140°
1(b)(iii)   7.68 or 7.679 to 7.680....         2                           FT their (b)(ii) and (b)(i)
                                                                           M1 for
 1(c)(i)    Angle [between] tangent [and]      1
            radius
 1(c)(ii)   B1 for 180 – 140 or 90 – their     3
            (b)(ii)
            M1 for
            oe
            A1 for [BC =] 13.109[...]
                                             - Mark Scheme                                                 /
Question                  Answer     Marks            AO Element            Notes               Guidance
1(c)(iii)   6.11 or 6.112 to 6.114     3                           M1 for [OB 2 =] 13.112 +
                                                                   112
                                                                   A1 for 17.1 or 17.11 or
                                                                   17.112 to 17.114
                                                                   OR
                                                                   M1 for         oe
                                                                   A1 for 17.1 or 17.11... or
                                                                   17.112 to 17.113
  2(a)      Pentagon                   1
  2(b)      12                         2                           B1 for 10 to 14
 2(c)(i)    Translation                2                           B1 for each
 2(c)(ii)   Rotation                   3                           B1 for each
            [centre] (0, 0) oe
            180°
2(c)(iii)   Enlargement                3                           B1 for each
            [centre] (4, 2)
            [scale factor] 0.5 oe
                                                        - Mark Scheme                                                  /
Question                Answer                  Marks            AO Element             Notes               Guidance
  2(d)     Correct reflection                     2                           B1 for a correct reflection
           (−2, −2), (−1, −4), (−2, −6), (−4,                                 in x = 0 or in y = k k ≠
           −6) (−6, −4)                                                       0
                                                                              or for 4 correct points
  3(a)     5.83 or 5.832 to 5.833                 5                           B2 for sector angle = 210
                                                                              soi
                                                                              or M1 for
                                                                                                    oe
                                                                              M2 for
                                                                              oe
                                                                              or M1 for
                                                                              oe isw
  3(b)     1.21 or 1.208…                         3                           M2 for
                                                                              oe
                                                                              or M1 for
                                                                              oe isw
                                             - Mark Scheme                                              /
Question                 Answer      Marks            AO Element            Notes            Guidance
 3(c)(i)    4[.00...]                  3                           M2 for
                                                                                    oe
                                                                   or M1 for
                                                                   or
                                                                   or for
                                                                   oe
 3(c)(ii)   2.20704                    3                           M2 for
                                                                   77.44 × 1.5 × 19 ÷ 1000
                                                                   oe
                                                                   or M1 for figs 2207[04]
                                                                   or figs 221 seen
                                                                   or [vol =] 77.44 × 1.5
  4(a)      4.79 or 4.788 to 4.789     3
                                                                   M2 for            oe
                                                                   or M1 for
                                                                                     oe
                                                                   If 0 scored SC1 for
                                                                   answer 3.8[0…]
                                                      - Mark Scheme                                                   /
Question                Answer                Marks            AO Element             Notes                Guidance
 4(b)(i)   8.7[0] or 8.702 to 8.704             3                           M2 for
                                                                            (300 − 230) ÷ (1.62 )
                                                                            or M1 for ×1.62 × h
4(b)(ii)   6.4                                  3                           M2 for
                                                                                              oe
                                                                            or M1 for sf
                                                                            or           oe
                                                                            or for
  5(a)     Similar                              1
  5(b)     4                                    2
                                                                            M1 for                 oe or
                                                                            better
                                                                            If 0 scored SC1 for
                                                                            answer 3.5
 5(c)(i)   6.7265 or 6.73 or 6.726 to 6.727     2                           M1 for scale factor 22 or
                                                                                     oe soi
                                                       - Mark Scheme                                                 /
Question                 Answer                Marks            AO Element            Notes               Guidance
 5(c)(ii)   13.453 or 13.5 or 13.45 to 13.46     1                           FT their (c)(i) × 2
  6(a)      750                                  1
  6(b)      4.7 cao                              3                           B2 for 4.658 to 4.66 or
                                                                             M2 for
                                                                             or M1 for 11π r 2 = their
                                                                             (a)
  6(c)      6                                    2
                                                                             M1 for 23 or      oe seen
                                                                             or for π × (2× their (b))2
                                                                             × 22
  7(a)                                           1                           Accept
                                      oe
            or
 7(b)(i)                                         3
            M2 for            oe                                             M1 for
                                                                             oe
             or
                                                                             or
            A1 for 11.59...
7(b)(ii)A   72.8 or 72.9 or 72.82 to 72.89…      2                           M1 for
7(b)(ii)B   12.1 or 12.06 to 12.08               2                           M1 for [6 +] their
                                                                             (b)(ii)(A) ÷ 12 oe
                                                  - Mark Scheme                                               /
Question               Answer             Marks            AO Element            Notes             Guidance
  7(c)     806 or 807 or 805.9 to 807.4     3                           B2 for 402.9… to
                                                                        403.7
                                                                        OR
                                                                        M2 for
                                                                                           e   o
                                                                        or M1 for
                                                                        oe
  8(a)     7.06 or 7.058… or 7.059          3                           M2 for
                                                                        oe
                                                                        OR
                                                                        M1 for
                                                                        oe
                                                                        A1 = 49.8...
 8(b)(i)   97                               1
                                                    - Mark Scheme                                              /
Question                Answer              Marks            AO Element            Notes            Guidance
8(b)(ii)   15.3[0…]                           3                           M2 for
                                                                          or M1 for
                                                                          oe
  8(c)     72.8 to 72.81…                     3                           M2 for
                                                                          oe
                                                                          or M1 for
                                                                          oe
                                                                          or
                                                                          oe
                                                                          or M1 for height =
                                                                                        oe
  9(a)     Angle [in] semi-circle [is 90]     1
 9(b)(i)   67.4 or 67.38…..                   2
                                                                          M1 for               or
                                                                          better
                                                          - Mark Scheme                                               /
Question                 Answer                   Marks            AO Element            Notes             Guidance
9(b)(ii)                                            2                           M1 for
9(b)(iii)   480                                     2                           M1 for 0.5 × 20 × 48 or
                                                                                better
9(b)(iv)    582 or 581.8 to 582.0                   3                           M1 for
                                                                                                   or
                                                                                better
                                                                                M1 for their 338 – their
                                                                                (b)(iii)
10(a)(i)    42.8 or 42.79 … nfww                    4                           M1 for mid-values soi
                                                                                M1 for Σ fm where m is
                                                                                any value in interval
                                                                                including boundaries
                                                                                M1 (dep on second M1)
                                                                                for their Σ fm ÷ 120
10(a)(ii)   Blocks of height 1.8 4.4 8 2.1 with     4                           B1 for each correct
            correct widths                                                      block
                                                                                If B0, SC1 for correct
                                                                                frequency densities
                                                                                seen
                                                  - Mark Scheme                                               /
Question               Answer             Marks            AO Element            Notes             Guidance
 10(b)     Valid general comment about      1                           e.g. [On average],
           distributions                                                shoppers spend less time
                                                                        shopping on Wednesday
                                                                        oe
 11(a)     B1 for range = 7                 6
           B1 for mode = 21
           B2 for median = 22.5                                         M1 for evidence of
                                                                        middle value
                                                                        M1 for use of Σ x ÷ 14
           B2 for mean = 22.7 or 22.71…
 11(b)                                      1
                oe
 12(a)     16                               1
 12(b)     50                               1
 12(c)                                      2                           FT their (b) for 1 or 2
                oe
                                                                        marks
                                                                        B1 for   ,k>4
                                                                        or          , k < 50
 12(d)     19                               1
13(a)(i)   –a + 2c                          1
                                                                - Mark Scheme                                                  /
Question                     Answer                     Marks            AO Element             Notes               Guidance
13(a)(ii)                                                 1
                             or                    oe                                 FT                    in
                                                                                      simplest form
13(a)(iii)                                                1
                             or          oe
13(a)(iv)                                                 2                           M1 for a correct
                             or               oe
                                                                                      unsimplified route
  13(b)      4                                            1
  14(a)      −3                                           1
  14(b)                                                   2
                  oe                                                                  M1 for                soi
  14(c)                  final answer                     2                           M1 for
                                                                                                      isw
  14(d)                                                   2                           M1 for a correct first step
                       oe final answer
                                                                                                 ,
                                                                                      or
                                                 - Mark Scheme                                              /
Question                Answer           Marks            AO Element            Notes            Guidance
 14(e)                                     3                           M1 for
                          final answer                                                     oe
                                                                       isw
                                                                       B1 for common
                                                                       denominator
14(f)(i)   M1 for                          3
           B1 for
           A1 for
                                                                       with no errors and must
           oe                                                          show
           leading to                                                  with no omissions after
                                                                       this
                                                     - Mark Scheme                                               /
Question                 Answer              Marks            AO Element               Notes          Guidance
14(f)(ii)   B2 for                             4                           B1 for
                                                                           or better
            oe
                                                                           or B1 for
                                                                                           oe
                                                                           or
                                                                           B1 for each
            B2 for 0.17 and 1.08 final ans
                                                                           If 0 scored, SC1 for
                                                                           answer 0.2 and 1.1
                                                                           or answer − 0.17 and
                                                                           −1.08
                                                                           or 0.174... and 1.075 to
                                                                           1.076 seen
                                                                           or 0.17 and 1.08 seen in
                                                                           working
 15(a)      4                                  1
 15(b)      52                                 2                           M1 for f(8) seen or
 15(c)                                         1
                                                        - Mark Scheme                                                /
Question                Answer                  Marks            AO Element            Notes              Guidance
 15(d)                                            3                           M1 for
                             or
                                 final answer
                                                                              B1 for denominator
                                                                                        or
 15(e)     −3                                     2                           M1 for
 15(f)     [p =] 0 and [p =] 1                    2                           B1 for each
 16(a)                                            3
                                  oe isw                                      B2 for                 oe
                                                                              isw
                                                                              OR
                                                                              B1 for         seen
                                                                              B1 for time = 2.8 or
                                                                              or       oe
                                                       - Mark Scheme                                                /
Question                Answer                 Marks            AO Element               Notes           Guidance
 16(b)     M2 for                                4                           FT their time, provided
                                                                             2 algebraic fractions one
           or better                                                         in x and other in ± x ±
                                                                             10
                                                                             M1 for
                                                                             seen or better
           M1 for
                                                                             FT their equation dep on
           A1 for                        oe                                  M2
           or                             or
           better
           leading to                                                        with no errors or
                                                                             omissions
 16(c)     B2 for                                4                           B1 for
                                                                             or better
           oe
                                                                             or for               or
           B2 for 5 and 8.57 or 8.571…
                                                                             B1 for each
                                                                             or SC1 for final answers
                                                                             5 and –8.57
                                                    - Mark Scheme                                                  /
Question                Answer              Marks            AO Element             Notes               Guidance
 16(d)      84 to 84.01…                      2                           FT
                                                                                                  to
                                                                          3 sf or better
                                                                          M1 for
                                                                          oe
17(a)(i)                                      1
17(a)(ii)                                     1
 17(b)                                        4                           FT their (a)(i) and (a)(ii)
            M1 for                     oe
                                                                          if expressions in m
            M1 for                                                        Dependent on M1 and
                                                                          correct fractions
            oe
            A1 for
            oe nfww
            A1 for correct completion to
                                                - Mark Scheme                                             /
Question                 Answer         Marks            AO Element               Notes        Guidance
17(c)(i)    3.6 and −4.5 final answer     3                           B2 for
                                                                                          or
                                                                      or better
                                                                      or B1 for
                                                                      where ac = 10 and
                                                                      either bd = −162
                                                                      or ad + bc = 9
                                                                      or for
                                                                      or better or        or
                                                                      better
17(c)(ii)   20                            1
                                            - Mark Scheme                                              /
Question                Answer      Marks            AO Element            Notes            Guidance
 18(a)     20.8 or 20.76 to 20.79     4                           B3 for [BC =] 10.4 or
                                                                  10.38 to 10.39… or
                                                                  oe
                                                                  or M2 for
                                                                  oe
                                                                  or M1 for          oe
                                                                  or        oe
                                                                  or           oe or
                                                                              oe
                                                                  or SC2 for final answer
                                                                  of      or 26.8 or
                                                                  26.83…
                                                                  OR
                                                                  M3 for
                                                                  oe
                                                                  or M2 for
                                                                  or M1 for         oe or
                                                                               oe
                                                                  or           oe
                                              - Mark Scheme                                                /
Question                Answer        Marks            AO Element            Notes              Guidance
 18(b)     14.5 or 14.47 to 14.48       3
                                                                    M2 for
                                                                    oe
                                                                    or M1 for recognising the
                                                                    correct angle GAC
 19(a)     4.455 to 4.456… [= 4.46]     2
                                                                    M1 for             oe
 19(b)     1250 or 1247 to 1249.9…      2                           M1 for
                                                                    oe
 19(c)     66[.0] or 65.95 to 66.02     3                           M2 for
                                                                                       oe
                                                                    or B1 for identifying
                                                                    angle ANB on cylinder
                                                                    not on rectangle
 20(a)     3                            1
                                               - Mark Scheme                                                 /
Question                Answer         Marks            AO Element            Notes               Guidance
 20(b)     51.3 or 51.30 to 51.34…       4
                                                                     M3 for
                                                                     or
                                                                     oe
                                                                     or M2 for            or
                                                                     or M1 for angle ARB
                                                                     clearly indicated
 21(a)     Correct sketch                2                           B1 for one correct branch
                                                                     or correct sketch but with
                                                                     branches joined
 21(b)     11.3 or 11.30 to 11.31        2                           B1 for each
           and                                                       If 0 scored SC1 for two
                                                                     answers with a difference
           191.3 or 191.30 to 191.31
                                                                     of 180°
 22(a)     Correct sketch                2                           B1 for correct shape but
                                                                     inaccurate
                                                      - Mark Scheme                                                /
Question               Answer                 Marks            AO Element            Notes              Guidance
 22(b)     Rotational [symmetry] order 2        2                           B1 for rotational
           [centre] (180, 0)                                                [symmetry]
 23(a)                                          2                           B1 for linear equation
                                                                            with positive gradient or
                                                                            intercept 5
 23(b)            oe                            2                           B1 for recognition of sin
                                                                            or cos(x – 90)
 24(a)     70 or 70.16[5…] or 70.17 or 70.2     3                           M2 for
                                                                                                or
                                                                            or
                                                                            or B1 for 29 750 or
                                                                            29 850 or 29 849 or 375
                                                                            or 425 or 424 seen
 24(b)     2399                                 2                           B1 for 27 450 or 27 550
                                                                            or 27 549 or 29 850 or
           or 2400 nfww
                                                                            29 849 seen
  25       70 nfww                              3                           M2 for
                                                                            (600 + 2.5) ÷ (9 – 0.5)
                                                                            or B1 for one of
                                                                            600 + 2.5
                                                                            or 9 – 0.5 seen
                                               - Mark Scheme                                                       /
Question                Answer         Marks            AO Element              Notes           Guidance
 26(a)     245                           1
 26(b)     8                             2                           M1 for 40 + 26.5x = 252
                                                                     oe
                                                                     or B1 for 212 seen
 26(c)     6                             2                           M1 for (224 − 2 × 48 ) ÷
                                                                     32 oe
                                                                     or 2 × 48 + 32(x – 2) =
                                                                     224 soi
 26(d)     35 : 36 : 32 final answer     2                           B1 for their (a) : 252 :
                                                                     224 or equivalent ratio
 27(a)     2.25 final answer             2
                                                                     M1 for         or
                                                                     oe
 27(b)     37.5                          1
                                                                     FT their
 27(c)     5.5[0] or 5.499 to 5.500      2                           M1 for 6 ÷ 1.091
                                                                                                    [Total: 222]