CBSE Class 6 Mathematics Ratio and Proportion Assignment Set A

1. Find x in the proportion : 6 : x : : 3 : 7

2. Express the ratio 25 cm to 1 m in the simplest form.

3. Find the ratio 18 sconds to 1 hour in the simplest form.

4. Divide Rs 90 in the ratio 3 : 7 .

5. Determine whether the following are in proportion.

a) 2 , 3 , 4 , 5 b) 4 , 6 , 8 , 12

6. 16 : 24 = 20 : 30. True or False.

7. 5 pens cost Rs 12 . How much will 20 pens cost ?

8. Give the ratio 64 to 88 in the simplest form .

9. A machine prints 1500 newspapers in 45 minutes . How many will it print in 2 hours ?

10. A bullock-cart travels 9 km in 3 hours and a train travels 150 km in 2 hours . Find the ratio of

the speed of the bullock-cart to that of the train?

11. Find the ratio of the number of consonant to the number of vowelsin the word MATHEMATICS .

12. What is the ratio of the number of prime numbers to the number of composite numbers between the numbers 1 to 50 with 1 and 50 inclusive ?

13. The ratio of the income to the savings of a family is 15 : 4 . Find the expenditure if the saving is Rs 2800 .

14. Two numbers are in the ratio 5 : 6 . If sum of the numbers is 132 , find the numbers.

15. First , second and third terms of a proportion are respectively 20 , 18 and 40 . Find its fourth term.

16. In 5 minutes , Surbhi can prepare 12 letters for mailing . At the same rate , how long will it take her to prepare 192 letters ?

17. Fill in the blanks :

a) In the proportion , the first and the fourth terms are called ___________ .

b) A ratio has no _____________ .

18. Write True or False

a) The ratio 2 : 5 is the same as the ratio 5 : 2 .

b) The numbers 8 , 10 , 4 , 5 form a proportion .

c) Ratio of 55 paise to 1 rupee is 55 : 1 .

19. 12 bags of wheat weigh 90 kg . How much will 20 bags weigh ?

20. Find the value of x in the proportion 9 : 5 : : 36 : x-3