Multiple choice

A and B are friends. A is elder to B by 5 years. B's sister C is half the age of B while A's father D is 8 years older than twice the age of B. If the present age of D is 48 years, find the present ages of A

  1. 30 years

  2. 20 years

  3. 10 years

  4. 25 years
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

D = 48. D = 2B + 8, so 48 = 2B + 8, 2B = 40, B = 20. A = B + 5 = 25.

AI explanation

Let B's present age be B, which makes D's age 2B + 8. Since D is 48 years old, 2B + 8 = 48, meaning 2B = 40 and B = 20. A is elder to B by 5 years, so A's present age is 20 + 5 = 25 years. The result is 25 years.

Keep practicing — related questions