Question

In eight years a girl will be three years older than twice her present age how old is she now?

Answer 1

8

Explanation:

Let the girl's age be g.

In 8 years, g+8, she will be twice as much as her present age, so that would be 2(g) + 3 so joining the equation, we get:

g+8=2(g) +3

Solve:

g+8=2g+3

g+3=8

g=5

The girl is 5 years old.