Arithmetic Ratio and Proportion Practice test By studybizz

1. If the four numbers – 75, 115, 145.5 and y

are in proportion, then find the value of y.

2. If 7776 : y : : y : 1014, and y > 0, then find

the value of y.

3. The seats for Mathematics, English and

Chemistry in a school are in the ratio of

11: 5 : 8. If these seats are increased by

40%, 50% and 70%, respectively, the ratio

of the increased seats is…

4. Which of the following is the highest

ratio?

5. A pole is 1976 cm long. It is coloured saffron, white and green in the ratio of 4 : 5 :

10. Find the length of the green part of the

pole.

6. Garima’s monthly salary is Rs.75000 and

her monthly expenditure is Rs.19,500.

Radha’s monthly salary is Rs.84000 and

her monthly expenditure is Rs.28000.

Find the ratio of Radha’s savings to

Garima’s saving’s.

7. The ratio of the number of boys in a

school to the total number of boys and the

girls in that school are 8 : 19. If the number of boys in that school is 9864, then

how many girls are there in that school?

8. The fourth proportional to 12, 48 and 54 is:

9. A varies directly as (B + 24) and A = 135

when B = 66. Find the value of A when B

= 89.

10. The ratio of the number of boys to that of

the girls in a school is 23 : 29. If there are

726 more girls than boys in the school,

what is the number of boys in that

school?

11. The ratio between the monthly income

and the expenditure of Vinai is 8 : 5. If

his income increases by 20% and his

expenditure increases by 30%, then find

the percentage increases or decreases in

his monthly savings.

12. Find the fourth proportional of 144, 192

and 216.

13. The salaries of a father, mother and

daughter are in the ratio 2 : 3 : 5. What

will be the ratio of their salaries if there

was an increase of 15%, 10% and 20%

respectively?

14. If 28 : 98 :: 98 : y, find the value of y.

15. The mean proportion between 7 and 112

is: