NCERT Solutions of Comparing Quantities Class 8
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Comparing Quantities

Exercise 1

1. Find the ratio of the following.

(a) Speed of a cycle 15 km per hour to the speed of scooter 30 km per hour.

comparing quantities 1

(b) 5 m to 10 km

comparing quantities 2

(c) 50 paise to Rs 5

Answer: Rs 5 = 500 paise

comparing quantities 3

2. Convert the following ratios to percentages.

(a) 3 : 4

comparing quantities 4

(b) 2 : 3

comparing quantities 5

3. 72% of 25 students are good in mathematics. How many are not good in mathematics?

Answer: Percentage of Students not good in math = 100 - 72 = 28

comparing quantities 6

Number of Students not good in Math = 25-18=7

4. A football team won 10 matches out of the total number of matches they played. If their win percentage was 40, then how many matches did they play in all?

Answer: Let us assume total number of matches = x

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5. If Chameli had Rs 600 left after spending 75% of her money, how much did she have in the beginning?

Answer: Money left after spending 75% = 100-75 = 25%

Let us assume total money = x

comparing quantities 8

Chameli had Rs. 2,400 in the beginning

6. If 60% people in a city like cricket, 30% like football and the remaining like other games, then what per cent of the people like other games? If the total number of people are 50 lakh, find the exact number who like each type of game.

Answer: Cricket Fans = 60%

Football Fans = 30%

So, Other Sports’ Fans = 100 - (60 + 30) = 10% people like other games.

comparing quantities 9
  NCERT Solutions of Comparing Quantities Class 8
<< Solution of NCERT Exercise 7.2Solution of NCERT Exercise 8.2 >>

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