Question
Six years ago, the ratio of the ages of Vivan and Saroj was 6:5. Four years hence, the ratio of their ages will be 11:10. What is Saroj’s age at present?
A. 15
B. 16
C. 17
D. 18
Answer: B. 16
Solution:
Given that, six years ago, ratio of the ages of Vivan and Saroj = 6:5
Hence we can assume that,
age of Vivan six years ago = 6x
age of Saroj six years ago = 5x
After 44 years, the ratio of their ages = 11:10
⇒ (6x + 10) : (5x + 10) = 11:10
⇒ 10(6x + 10) = 11(5x + 10)
⇒ 5x = 10
⇒ x = 10/5 = 2
Saroj’s present age
= (5x + 6) = 5 × 2 + 6 = 16
Hence, Saroj’s present age is 16.