CBSE Class 8 Mathematics Proportional Reasoning 1 MCQs Set J

Question. In a ratio like 60 : 40, the numbers 60 and 40 are called
(a) parts
(b) sides
(c) terms
(d) values

Answer: C

Question. If 48 : 40 = 30: x, then x =
(a) 64
(b) 36
(c) 25
(d) 12

Answer: C

Question. In ratio a : b, for every 'a' units there are 'b' units of
(a) first thing
(b) second thing
(c) third thing
(d) all things

Answer: B

Question. A mixture of 40 kg contains sand and cement in the ratio of 3:1. How much cement should be added to make the ratio of sand to cement 5:2?
(a) 5 kg
(b) 10 kg
(c) 2 kg
(d) 12 kg

Answer: C

Question. Simplest form of ratio 40 : 20 is
(a) 1 : 2
(b) 2 : 1
(c) 4 : 2
(d) 2 : 2

Answer: B

Question. Kesang makes 6 glasses of lemonade and adds sugar. Sugar added is
(a) 5 spoons
(b) 10 spoons
(c) 15 spoons
(d) 20 spoons

Answer: B

Question. Nitin and Hari used cement in same proportion. Their walls will be
(a) different
(b) equally strong
(c) weak
(d) very high

Answer: B

Question. A problem with four quantities where three are known is called
(a) Rule of Two
(b) Rule of Three
(c) Rule of Four
(d) Math rule

Answer: B

Question. Which of the following set of four numbers is not in proportion?
(a) 3,5,12,20
(b) 5,8,10,16
(c) 12,3,24,6
(d) 12,15,10,16

Answer: D

Question. Manjunath's regular coffee has 15 mL decoction and 35 mL milk. Simplest ratio is
(a) 1 : 2
(b) 3 : 7
(c) 5 : 7
(d) 15 : 35

Answer: B

Question. For 18 : 24 :: 12 : __ the number is
(a) 14
(b) 16
(c) 18
(d) 20

Answer: B

Question. Meghalaya tea is 1 kg for Rs 800. In grams, the ratio 1000 : 800 simplest form is
(a) 1 : 1
(b) 4 : 5
(c) 5 : 4
(d) 1 : 4

Answer: C

Question. The ratio of 90 cm to 1.5 m is given by:
(a) 5 : 3
(b) 3 : 5
(c) 60 : 1
(d) None of the options

Answer: B

Question. Prashanti and Bhuvan investment ratio 75000 : 25000 simplest form is
(a) 1 : 3
(b) 3 : 1
(c) 2 : 1
(d) 5 : 2

Answer: B

Question. Profit of Rs 4000 shared in 3 : 1. Prashanti gets
(a) Rs 1000
(b) Rs 2000
(c) Rs 3000
(d) Rs 4000

Answer: C

Question. If 150 : 90 :: 240 : x, then x is
(a) 100 km
(b) 144 km
(c) 150 km
(d) 120 km

Answer: B

Question. Bhuvan's share of profit is
(a) Rs 1000
(b) Rs 2000
(c) Rs 3000
(d) Rs 4000

Answer: A

Question. Area of Delhi is 1,484 sq. km and Mumbai is 550 sq. km. Mumbai is
(a) larger
(b) smaller area
(c) same area
(d) very big

Answer: B

Question. How can ratios be reduced to their simplest form?
(a) By adding their terms.
(b) By subtracting their terms.
(c) By multiplying their terms.
(d) By dividing the terms by their HCF.

Answer: D

Question. Population of Delhi is approximately
(a) 10 million
(b) 20 million
(c) 30 million
(d) 40 million

Answer: C