Ratio and Proportion Questions and Answers Aptitude Problems

Ratio and Proportion Questions and Answers: Ratio and Proportion Problems

Q.31 x and y are in the same proportion as (10 – x) and (15 – y), if x = 12, then y is equal to……

(A) 18

(B) 12.2

(C) 8

(D) 2.5

Show Answer

Q.32 At a certain party, first the ratio of boys to girls was 5 : 3. If after 10 boys left, the ratio becomes 1 : 1. How may people were originally at the party?

(A) 48

(B) 32

(C) 64

(D) 40

Show Answer

Q.33 A cylinder, a hemisphere and a cone are on the same base and have the same height, the area of the curved surface are in the ratio of …….

(A) 1 : 1 : 2

(B) Root 2 : Root 2 : 2

(C) Root 2 : Root 2 : 1

(D) 1 : 1 : Root 2

Show Answer

Q.34 Square A is formed with the diagonal of square B as its sides and square. B has the diagonal of square C as its side? Find the ratio of the area of square C to square A?

(A) 1 : 4

(B) 1 : 2

(C) 1 : Ö2

(D) 1 : 2Ö2

Show Answer

Q.35 Two regular polygons have the number of their sides in the ratio 2 : 1 and their interior angle in the ratio 5 : 4. The number of sides of the two polygons are……

(A) 10, 5

(B) 8, 4

(C) 12, 6

(D) 6, 3

Show Answer

Q.36 The ratio of the prices of the two prices of two houses A and B was 4 : 5 last year. This year, the price of A increased by 25% and that of B by Rs. 50,000. If their prices now are in the ratio 9 : 10, the price of A last year was…..

(A) Rs. 3,60,000

(B) Rs. 4,50,000

(C) Rs. 4,80,000

(D) Rs. 5,00,000

Show Answer

Q.37 The wages of labourers in a factory increased in the ratio 22 : 25 and there was a reduction in the number of laboures in the ratio 15 : 11. Find the original wage bill if the present bill is Rs. 5000?

(A) Rs. 6000

(B) Rs. 3000

(C) Rs. 4800

(D) Rs. 4500

Show Answer

Q. 38 Two casks of liquid contain liquid of mixture of liquids A and B. In the first flask A:B::7:3 and in the second cask A:B::3:1. In what ratio must the mixtures from the two casks be taken to give a mixture in which A:B::11:4?

(A) 1 : 2

(B) 1 : 3

(C) 2 : 3

(D) 2 : 1

Show Answer

Q. 39 If a : b : c :: 2 : 4 : 3, find the ratio of the square of the average to the average of their square.

(A) 23 : 25

(B) 8 : 3

(C) 25 : 27

(D) 27 : 29

Show Answer

Q.40 Five years back two friends age was in the ratio 5 : 1 and 30 years hence the ratio would be 10 : 9. Find the age of the younger friend five years hence.

(A) 11 years

(B) 12 years

(C) 14 years

(D) 15 years

Show Answer