SUBJECT: MATHEMATICS (REVISION TEST -1) MAX.
MARKS : 25
CLASS : VIII DURATION : 30min
SECTION – A
Questions 1 to 5 carry 1 mark each.
1. Which of the following is not true?
(a) rational numbers are closed under addition.
(b) rational numbers are closed under subtraction.
(c) rational numbers are closed under multiplication.
(d) rational numbers are closed under division.
2. (-3/8) + (1/7) = (1/7) + (-3/8) is an example to show that (a) addition of rational numbers is
commutative.
(b) rational numbers are closed under addition.
(c) addition of rational number is associative.
(d) rational numbers are distributive under addition.
3. In the below question, a statement of Assertion (A) is followed by a statement of Reason (R). Mark the
correct choice as
Assertion (A): Rational numbers are commutative for division.
Reason(R): Rational numbers are commutative under addition and multiplication.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
.4. If 10x – 5 – 7x = 5x + 15 – 8, then the value of x is
(a) 6 (b) –6 (c) 5 (d) –5
6. In the below question, a statement of Assertion (A) is followed by a statement of Reason ®.
Mark the correct choice as
Assertion (A): The equation X(X – 2) + 1 is a linear equation in one variable.
Reason®: Standard form for linear equation in one variable is ax + b = 0, where x is variable and a, b are arbitrary
constants.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not the correct explanation of A
(c) A is true but R is false d) A is false but R is true
SECTION – D
carry 4 marks .
6. 5/8 of total number of teachers come by bus, while 1/8 of teachers come by two wheeler.
All the other teachers walk to school of which 1/4 walk on their own. If 78 teachers come
to school walking on their own, how many teachers taught in that school.
7. Simplify and solve the linear equations: 4(3p + 2) – 5(6p – 1) = 2 (p – 8) –6(7p – 4)
SECTION – E (Case Study Based Question)
carry 6 mark each
8. The diagram shows the wingspans of different species of birds. Use the diagram to answer the
question given below:
(a) How much longer is the wingspan of an Albatross than the wingspan of a Sea gull?
(b) How much longer is the wingspan of a Golden eagle than the wingspan of a Blue jay?
9. It is common that government revises fares from time to time based on various factors such as taxes,
economy and inflation, for various vehicles like auto-rickshaw, taxis and radio cab etc. The auto and Taxi
charge in a city comprise of fixed charge and the charge for the distance covered. Few situations are given
below in the form questions.
(a) If the fixed charge in a city is ₹ x and charge per km is ₹ 5 and total fare is ₹ 60 then find the linear equation
for the journey of 10 km.
(b) In the above question, what is the value of fixed charge?
(c) If in a city a person has to pay ₹ 110 for a journey of 15 km and fixed charge is ₹ 20 then what is the charge
per km is?
(d) If in a city fixed charge is double of the charge per km and a person paid ₹ 75 for a journey of 1 km, then
the linear equation for the following situation is?
Prepared by: TUSARKANTI GIRI (SHRUJAN ACADEMY OF SCIENCE AND TECHNOLOGY)
