A father is 30 years older than his son. In 5 years, the father will be 3 times as old as his son. What is the son's current age?
Q1. A father is 30 years older than his son. In 5 years, the father will be 3 times as old as his son. What is the son's current age?
Answer: 10 years
Explanation: Let's denote the son's age as x. The father's age is x + 30. In 5 years, x + 5 + 30 = 3(x + 5), simplifying to x + 35 = 3x + 15, so 2x = 20, and x = 10.