The present ages of A and B is 13 years and 16 years respectively. What will be the ratio of ages of A and B after 7 years?
Show answer & explanation
Correct answer: A
Explanation
Let the present ages be:
A's age = 13x
B's age = 16x
Ages after 7 years:
A's age = 13x + 7
B's age = 16x + 7
The ratio of their ages:
(13x + 7) : (16x + 7)
From Option A: 20 : 23
Final Ratio:
(13×1+7):(16×1+7)=20:23