Question 1
Currently, Dhruv is 4/7 of Serenity's age. After 12 years, Dhruv will be 2/3 of Serenity's age. Find Dhruv's present age.
Let Serenity = x, then Dhruv = 4/7x
After 12 years: 4/7x + 12 = 2/3(x + 12)
Solving gives x = 63, so Dhruv = 36
After 12 years: 4/7x + 12 = 2/3(x + 12)
Solving gives x = 63, so Dhruv = 36