CBSE Class 8 Mathematics Proportional Reasoning 1 MCQs Set 03

Question. Look at the images in the book. Images A, C, and D look
(a) very different
(b) same shape
(c) similar
(d) bad

Answer: C

Question. To make ratios same, terms must change by same
(a) factor
(b) plus
(c) subtraction
(d) zero

Answer: A

Question. Simplest form of ratio 60 : 60 is
(a) 6 : 6
(b) 1 : 1
(c) 0 : 0
(d) 1 : 6

Answer: B

Question. Ratio of Neelima's age to mother's age when she is 3 years old is
(a) 3 : 30
(b) 1 : 10
(c) 10 : 1
(d) Both a and b

Answer: D

Question. In a group of 64 students, 42 are boys. The ratio of the number of boys and girls in that group is
(a) 32: 21
(b) 21 : 11
(c) 11 : 21
(d) 32 : 11

Answer: B

Question. To make soft idlis, mix rice and urad dal in ratio
(a) 1 : 1
(b) 2 : 1
(c) 3 : 1
(d) 5 : 2

Answer: B

Question. Nitin built a 60 ft wall using 3 bags of cement, and Hari built a 40 ft wall using 2 bags of cement. Is Nitin correct in worrying that Hari's wall would be less strong?
(a) Yes, because Hari used less cement.
(b) No, because both walls are equally strong.
(c) Only if the walls are of different heights.
(d) It depends on the type of cement used.

Answer: B

Question. To find rice for 80 students, multiply 15 by factor
(a) 1/2
(b) 2/3
(c) 3/4
(d) 1/3

Answer: B

Question. Sharing 12 counters in ratio 3 : 1. Partner gets
(a) 3
(b) 6
(c) 9
(d) 10

Answer: C

Question. When are two ratios considered to be in proportion, or proportional?
(a) When their terms are added together.
(b) When their simplest forms are the same.
(c) When they use different units.
(d) When their terms are multiplied.

Answer: B

Question. New ratio of sand to cement is 5 : 2. Sand is 30 kg. New cement should be
(a) 10 kg
(b) 12 kg
(c) 14 kg
(d) 15 kg

Answer: B

Question. To share 42 counters in ratio 4 : 3, total number of groups is
(a) 4
(b) 3
(c) 7
(d) 12

Answer: C

Question. A car travels 90 km in 150 minutes. Speed is constant. In 240 minutes it covers
(a) 100 km
(b) 144 km
(c) 150 km
(d) 200 km

Answer: B

Question. Look at 24 : 8 :: 9 : 3. This statement is
(a) true
(b) false
(c) wrong
(d) bad

Answer: A

Question. If we take the ratio 72 : 96, the simplest form is
(a) 1 : 2
(b) 3 : 4
(c) 4 : 3
(d) 2 : 3

Answer: B

Question. Āryabhaṭa says multiply phala by ichchhā and divide by
(a) number
(b) phala
(c) pramāṇa
(d) fruit

Answer: C

Question. After 9 years, Neelima is 12. Her mother will be
(a) 30 years
(b) 39 years
(c) 40 years
(d) 42 years

Answer: B

Question. The symbol used to show proportion is
(a) :
(b) ::
(c) +
(d) =

Answer: B

Question. To find simplest form of a ratio, divide terms by
(a) L.C.M.
(b) H.C.F.
(c) prime number
(d) small number

Answer: B

Question. In image B, the tiger looks
(a) small
(b) fat
(c) elongated
(d) very thin

Answer: C