CAT 2002 Exam Solutions
CAT 2002 Exam Solutions
1 3 2 4 3 4 4 3 5 3 6 1 7 1 8 3 9 3 10 3
11 2 12 4 13 1 14 4 15 1 16 1 17 1 18 4 19 2 20 3
21 3 22 3 23 4 24 1 25 3 26 3 27 2 28 2 29 2 30 2
31 2 32 4 33 4 34 2 35 2 36 2 37 3 38 2 39 1 40 4
41 2 42 2 43 2 44 4 45 3 46 1 47 3 48 2 49 4 50 3
51 3 52 2 53 1 54 2 55 1 56 4 57 4 58 2 59 4 60 4
61 3 62 2 63 4 64 3 65 3 66 2 67 2 68 4 69 3 70 1
71 3 72 2 73 3 74 4 75 4 76 1 77 1 78 4 79 2 80 4
81 4 82 3 83 4 84 3 85 1 86 3 87 *2 88 3 89 2 90 2
91 4 92 4 93 4 94 3 95 4 96 2 97 2 98 4 99 3 100 3
101 3 102 2 103 4 104 2 105 4 106 3 107 1 108 3 109 4 110 2
111 3 112 1 113 4 114 3 115 1 116 4 117 3 118 2 119 3 120 2
121 1 122 4 123 1 124 3 125 1 126 3 127 2 128 3 129 4 130 1
131 1 132 4 133 4 134 4 135 2 136 4 137 2 138 2 139 4 140 4
141 4 142 1 143 1 144 2 145 1 146 3 147 4 148 3 149 1 150 3
Scoring table
QA 51 to 100 50
EU + RC 101 to 150 50
Total 150
F 1 1 y + x
16. 1 From (A), (x + y) x + y = 4 or (x + y) xy = 4
FIN IS H
Hence, we can see that option (3) is correct. (x + y)2 = 4xy
(x y)2 = 0
x=y ... (i)
58. 2 63. 4 x0 = x
x1 = x
(1 , 1 ) x2 = x
x3 = x
x4 = x
(0 , 0 ) (2 , 0 ) x5 = x
x6 = x
Let a = 0 ..
1 Choices (1), (2), (3) are incorrect.
Hence, area = (2) (1) = 1
2
Note: Answer should be independent of a and area
of the triangle does not have square root.
y 2 + (x 5) y + x 2 5x + 3 = 0 S(1 x) = 2 + 3x + 4x 2 + 5x 3 + ....
As it is given that y is a real number, the discriminant
Let S1 = S(1 x) S1 = 2 + 3x + 4x 2 + ...
for above equation must be greater than or equal to
zero.
xS1 = 2x + 3x 2 + ...
Hence, (x 5)2 4(x 2 5x + 3) 0
S1(1 x) = 2 + x + x 2 + ....
3x 10x 13 0
2
x
S1(1 x) = 2 +
3x2 13x + 3x 13 0 1 x
x S= 2x
13 S(1 x)2 = 2 +
x 1, 1 x (1 x)3
3
13
Largest value that x can have is . 71. 3 x 2 + 5y 2 + z2 = 4yx + 2yz
3
(x 2 + 4y 2 4yx) + z2 + y 2 2yz = 0
65. 3 Area = 40 20 = 800 m2.
If 3 rounds are done, area = 34 14 = 476 m2 (x 2y)2 + (z y)2 = 0
Area > 3 rounds It can be true only if x = 2y and z = y
If 4 rounds Area left = 32 12 = 347 m2
Hence, area should be slightly less than 4 rounds. 72. 2 Let the number be ab.
Arithmetic mean is more by 1.8 means sum is more
66. 2 Since thief escaped with 1 diamond, by 18.
Before 3rd watchman he had (1 + 2) 2 = 6 diamonds. (10b + a) (10a + b) = 18
Before 2nd watchman he had (6 + 2) 2 = 16 diamonds. 9 (b a) = 18
Before 1 st watchman he had (16 + 2) 2 = 36
b a = 2.
diamonds.
73. 3 By trial and error:
1 30 12 = 360 > 300
67. 2 Mayank paid of the sum paid by other three. 30 7.5 = 225 < 300
2
50 6 = 300. Hence, he rented the car for 6 hr.
1
Mayank paid rd of the total amount = $20.
3 n2 + n
74. 4 575 = x
Similarly, Mirza paid $15 and Little paid $12. 2
Remaining amount of $60 $20 $15 $12 = $13 is
1150 = n2 + n 2x
paid by Jaspal.
n(n + 1) 1150
68. 4 Let the number of gold coins = x + y
n2 + n 1150
48(x y) = x2 y2
The smallest value for it is n = 34.
48(x y) = (x y)(x + y) x + y = 48
For n = 34
Hence, the correct choice will be none of these.
40 = 2x x = 20
69. 3 Lets assume that
p days : they played tennis 75. 4 x 1 [x] x
y days : they went for yoga 2x + 2y 3 L(x,y) 2x + 2y a 3 L a
T days : total duration for which Ram and Shyam
stayed together 2x + 2y 2 R(x,y) 2x + 2y a 2 R a
p + y = 22 Therefore, L R
(T y) = 24 and (T p) = 14
Adding all of them, Note: Choice (2) is wrong, otherwise choice (1) and
2T = 22 + 24 + 14 T = 30 days. choice (3) are also not correct. Choose the numbers
to check.
Num ber of lines 0 1 2 3 4 5 10 86. 3 Total number of passwords with atleast 1 symmetric
Num ber of regions 1 2 4 7 11 16 56 letter
= Total number of passwords using all letters Total
10 11 number of passwords using no symmetric letters
Therefore, for n = 10, it is + 1 = 56 = (26 25 24) (15 14 13 ) = 12870
2
87. *2 AB is the tunnel and d km be its length.
(2 )
64
77. 1 4
= (17 1) 64
= 17n + ( 1)
64
= 17n + 1 A X B
Hence, remainder = 1 3d
8
A2 B2 d
78. 4 + = 1 A 2 (x 1) + B2 x = x 2 x
x x 1
When one of A or B is zero, it will be a linear equation Let the current position of the cat be X. If it runs to-
which will have one real root. When both A and B are wards A, it would reach A at the same time as the train
non-zero, it will be a quadratic equation which can reaches A.
have two real roots. However, if it runs towards the other end B, it would
reach point Y at the same time when the train reaches
79. 2 Since each word is lit for a second, least time after 3d
which the full name of the bookstore can be read A. Hence, point Y would be at a distance of km
8
again
from X
5 17 41 7 21 49
= LCM + 1, + 1, + 1 = LCM , A X Y B
2 4 8
,
2 4 8
3d 3d
LCM (7,21,49) 49 3 8
= = = 73.5 s. 8
HCF(2,4,8) 2 d
100. 3 Number of ways for single digit = 2 109. 4 The recent revival in C elaborates an inadequate
2 digits = 2 3 = 6 monsoon in E. Hence, EC forms a mandatory pair. D
3 digits = 2 3 3 = 18 follows B and A concludes the paragraph. Hence,
4 digits = 2 3 3 3 = 54 option (4) is correct.
5 digits = 2 3 3 3 3 = 162
6 digits = 2 3 3 3 3 3 = 486 110. 2 BE is a mandtory pair. B talks about a question regarding
Total number of ways = 728 the shape of the earth and E answers the question.
ED is another mandatory pair wherein E talks about
101. 3 The size of the pitch is the usage of measure. the question of how much more and D answers the
The vessel is used to take out a litre of oil. question by stating One way of doing that is to
Action against tresspassers was instituted in the determine... The mandatory sequence BED is only
campus. there in option (2). Hence, option (2) is correct.
Sheila ascertained the measurement of each item.
111. 3 Obviously is the right answer as it matches the tone
102. 2 Dinesh could not stand the discussion and he was of great simplifications.
forced to walk out.
Vidyas story is the limit, very hard to believe. 112. 1 Numerical value in the earlier paragraph points to
Jyoti wanted to go to the Bar. quantitatively as the answer.
The forces were such that he was certain to go over
the edge. 113. 4 Assess alternatives that follows the blank gives the
answer alternatives.
103. 4 Hussain tried to capture the spirit of India in this painting
(on the canvas). 114. 3 The passage deals with firing employees.
Sorry, I could not understand what you just said.
Is there s ome deception (vanishing ac t) in this 115. 1 Resolve means to find a solution to something.
proposal?
All her friends agreed that Prakash was a person 116. 4 The failed product would not be present had it not
worth entrapping in the snares of romance. passed through the process.
104. 2 I decided not to do business in handmade cards. 117. 3 This is a simple question of parallelism, not that it is ...
My brother is a trader of cards. but that it is.
Dinesh insisted on giving out the cards to the players.
This contract is concerned with handmade cards. 118. 2 You generate money through deals, and not by deals
or on deals. The two factors escalated costs and
105. 4 Ashish asked Laxman to turn his face in a new black money are lucidly given in (2).
direction.
Leena never sent a beggar away without offering 119. 3 W e always have to use the conjunction between to
anything. compare prices at two levels.
The old school building has taken the form of a museum.
Now he had the opportunity to voice his protest. 120. 2 Reduce and encourage will make a parallel
construction. Action is taken by someone, not of
106. 3 The reason why the demand for branded diapers may someone.
be price-sensitive is given in A. This is supported by
DB. C contrasts, supported by the example in E. F can 121. 1 Opprobrium is the state of being abused or scornfully
be linked with private-labels. criticized.
107. 1 (3) is a haphazard choice with no definite beginning, 122. 4 Portend means to predict or foreshadow.
middle or end. Discipline goes better with strong focus
as in AC. E further elaborates. DBF talks about making 123. 1 Prevaricate means to speak evasively with intent to
strategy foolproof through the value chain. deceive.
128. 3 Refer to the part glamour departed from politics. 141. 4 Refer towards the end of the second paragraph.
129. 4 (4) is mentioned as a desirable characteristic towards 142. 1 Refer to inside of a cell bustles with more traffic and
the end of the passage. polymers, along which bundles of molecules travel
like trams.
130. 1 In (1), the writers and their respective approaches
are correctly matched as per the information given in 143. 1 Refer to The dynein motor ... is still poorly understood
the passage. and without motor proteins. Our muscles wouldnt
contract.
131. 1 Refer to the part abortion access when their countries
were perceived to have an overpopulation problem. 144. 2 Refer to the part without motor proteins ... We couldnt
grow and these particles create an effect that seems
132. 4 (1), (2) and (3) are stated towards the end of the to be so much more than the sum of its parts.
second paragraph and the beginning of the third
paragraph. 145. 1 Refer to the part three families of proteins, called
133. 4 (1), (2) and (3) are too far-fetched and find no place in myosin, kinesin and dynein and the growth process
the passage. requires cells to duplicate their machinery and pulls
the copies apart.
134. 4 (1) need not be necessarily true as an inference. (2)
and (3) are explicitly stated towards the end of the 146. 3 Refer to the part They think for us and is giving the
penultimate paragraph. language a lot of responsibility.
135. 2 Refer towards the end of the fourth paragraph. (2) 147. 4 (4) does not qualify as rhetoric on the basis of
comes closest to what the writer wants to say. information given in the fourth paragraph. Commands
are, at best, staid.
136. 4 (1), (2) and (3) find no place in the passage to support
the pro-choice lobby. 148. 3 (1), (2) and (4) cannot qualify as an answer as they
sound extreme or implausible. (3) comes closest to
137. 2 Simple. Just read the last line of the passage. what the writer would like to suggest.