Page 182 - Maths Class 06

2. Find the ratio of the following:
(a) 25 cm to 2.5 m (b) 15 minutes to 1.5 hours

(c) 400 mL to 1.6 L (d) 60 paise to ` 1
3. Which ratio is greater?
(a) 1 : 2 or 3 : 7 (b) 5 : 13 or 2 : 5
(c) 3 : 4 or 5 : 6 (d) 9 : 11 or 7 : 3

4. There are 16 girls and 24 boys in a class. What is the ratio of number of boys to the number of
girls?

5. Sweeti has 4 pairs of white earrings and 5 pairs of red earrings. What is the ratio of white earrings
to the total number of pairs of earrings?

6. Arun drives his car at a speed of 60 km per hour whereas Varun drives his car at the speed of 45
km per hour. Find the ratio of the speed of Varun car to Arun car.

7. A tempo trav els 60 km in 4 hours and a car trav els 40 km in 1 hour. Find the ratio of their speed.
8. Nisha has 24 cups and 18 saucers. Find the ratio of the following in the simplest form:
(a) Saucers to cups (b) Cups to saucers
(c) Saucers to the whole crockery (d) cups to the whole crockery

9. In a Rawat acad emy there are 30 cricket play ers and 20 foot ball player setting train ing. Find the
ratio of the following in the simplest form:

(a) Cricket players to football players (b) Football players to cricket players
(c) Cricket players to all players (d) Football players to all players
10. Mr Sonu earns ` 18,000 per month. He spends ` 12,000 and saves the rest. Find the ratio of the
following in the simplest form:
(a) His expenditure to savings (b) His income to expenditure
(c) His earning to savings (d) His savings to income
11. The present age of a father is 36 years and that of his son is 8 years. Find the ratio of:
(a) present age of father to the present age of son.

(b) age of father to the age of son, when son was 6 years old.
(c) age of father to the age of son after 10 years.
(d) age of father to the age of son when father was 30 years old.

12. In class VI of a school having 50 students, 20 play cricket, 10 play table tennis and 15 play
badmin ton. The remain ing students do not play any game. No student is allowed to play more
than one game. Find the ratio of the number of students:
(a) playing cricket to the number who play table tennis.
(b) playing table tennis to the number who play badminton.

(c) playing some game to the number who do not play any game.
(d) playing some game to the total number of students.

Proportion

A proportion is an equation with equal ratios on both sides. Consider four numbers say, a b c, , and d such
that a : b = c : d then a b c, , and d are said to be in proportion. The symbol :: is used for proportionality.

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