The present ages of Sweeta and Suman are in the ratio 4 : 5, Six years back, the ratio of their ages was 2 : 3. what is the present age of Sweeta?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 12 years.
Let Sweeta's present age be 4x and Suman's present age be 5x.
So, (4x - 6)/(5x - 6) = 2/3
⇒ 12x - 18 = 10x - 12
⇒ 2x = 6
⇒ x = 3
⇒ 4x = 4 × 3 = 12
Therefore, Sweeta's present age is 12 years.