100+ Ratio and Proportion Aptitude Questions and Answers - 1

Question: 1

The average age of three boys is 25 years and their ages are in the proportion 3 : 5 : 7. The age of the youngest boy is

(A) 9 years

(B) 10 years

(C) 15 years

(D) 18 years

Question: 2

The ratio of boys and girls in a club is 3 : 2. Which of the following could be the actual number of members?

(A) 16

(B) 20

(C) 25

(D) 27

Question: 3

The ratio of urea and potash in a mixed fertilizer is 7 : 3. Express the quantity of urea present as percentage of the total amount of fertilizer?

(A) 50%

(B) 60%

(C) 70%

(D) 80%

Question: 4

The sides of a triangle are in the ratio 3 : 4 : 5. The measure of the largest angle of the triangle is

(A) 60°

(B) 65°

(C) 70°

(D) 75°

Question: 5

A person spends Rs.8100 in buying some tables at Rs.1200 each and some chairs at Rs.300 each. The ratio of the number of chairs to that of tables when the maximum possible number of tables is purchased.

(A) 1 : 1

(B) 1 : 2

(C) 1 : 4

(D) 2 : 1