A man is 4 times as old as his son. If the sum of their ages is 40, how old is the son?
Q1. A man is 4 times as old as his son. If the sum of their ages is 40, how old is the son?
Answer: 8
Explanation: Let the son's age be x. Then, the man's age is 4x. So, x + 4x = 40, 5x = 40, x = 8.