Six years ago, the ratio of the ages of Kunal and Sagar was 6 : 5. Four years hence, the ratio of their ages will be 11 : 10. What is Sagar’s age at present?
👨👦 Age Ratio Puzzle 👦
Let’s break it down step by step:
Six years ago:
Kunal’s age = 6x
Sagar’s age = 5x
Present ages:
Kunal’s age = 6x + 6
Sagar’s age = 5x + 6
Four years hence:
Kunal’s age = 6x + 6 + 4 = 6x + 10
Sagar’s age = 5x + 6 + 4 = 5x + 10
The ratio of their ages four years hence is 11:10:
(6x + 10) / (5x + 10) = 11/10
Cross-multiply:
10(6x + 10) = 11(5x + 10)
Expand and simplify:
60x + 100 = 55x + 110
Subtract 55x from both sides:
5x = 10
Divide by 5:
x = 2
Now, find Sagar’s present age:
Sagar’s age = 5x + 6
= 5(2) + 6
= 10 + 6
= 16
Sagar’s age at present is 16.