Question 1
Prem is 1/5 of Joshua's age. After 8 years, Prem will be 1/4 of Joshua's age. Find Prem's present age.
Let Joshua = x, then Prem = 1/5x
After 8 years: 1/5x + 8 = 1/4(x + 8)
Solving gives x = 50, so Prem = 10
After 8 years: 1/5x + 8 = 1/4(x + 8)
Solving gives x = 50, so Prem = 10