Correct Answer - Option 4 : 14 years
Given
Present age of Sudhir = 1.4 times of Suman’s age
After seven years ratio of their ages = 19 ∶ 15
Formula used
Ratio formula, a ∶ b = a/b
Calculation
Let present age of Suman = x years
So present age of Sudhir = 1.4x
According to question
⇒ (1.4x + 7)/(x + 7) = 19/15
⇒ 15(1.4x + 7) = 19(x + 7)
⇒ 2x = 133-105
⇒ x = 28/2
⇒ x = 14 years
∴ the present age of Suman is 14 years.