Rohini's friend age is 12 years, if the ratio of age of Rohini to that of her friend is 4 : 3. Then what will be ratio of their ages after 4 years from now?
Answer & explanation
Correct answer: option 1
Rohini : Rohini's friend
(given) 4 : 3
Rohini friend's age = 12 years
i.e. 3R = 12 years
1R = 4 years
so, age of Rohini = 4R
age of Rohini = 4 × 4 = 16 years
After 4 years ,
Rohini friend's age = 12 + 4 = 16 years
Age of Rohini = 16 + 4 = 20 years
required ratio , Rohini : Rohini's friend
20 : 16
required ratio, 5 : 4