The age of Rohini’s friend is 12 years, and the ratio of Rohini’s age to her friend’s age is 4 : 3. What will be the ratio of their ages 4 years from now?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 5 : 4
Find Rohini’s age from the ratio, then add 4 years to both ages.
Rohini \(\displaystyle =\frac{4}{3}\times12=16\) years
After 4 years: Rohini 20 years, friend 16 years
Ratio \(=20:16=5:4\)