Question

Today, George is three times as old as his sister Lucy. In two years, Lucy will be half as old as George, How old will George be in two years?

Answer 1

In two years, George will be 8 years old.

Explanation:

g = 3s

(g + 2) / 2 = a + 2

g + 2 = 2 (s + 2)

g + 2 = 2s + 4

g = 2s + 2

3s = 2s + 2

s = 2

g = 3s

g = 3 (2)

g = 6

6 + 2 = 8