Question

The average age of Kofi, Ama, and their child 4 years ago was 20 years, and that of Ama and Kofi 5 years ago was 30 years. The present age of the child is __.

A) 19 years
B) 21 years
C) 22 years
D) 24 years

Answer 1

The present age of the child is 24 years.

Step-by-step explanation:

Let's assume the present age of the child is x years. Thus, Kofi's current age will be x+4 and Ama's current age will be x+4 as well.

Given that the average age of Kofi, Ama, and their child 4 years ago was 20 years, we can set up the equation (x+4+4)/3 = 20.

Simplifying this equation, we get 2x + 12 = 60. Solving for x, we find that x = 24.

Therefore, the present age of the child is 24 years.