Question

Fifteen years from now a girls age will be 4 times her present age. Find the girl's age now. The girl is currently ____ years old.

Answer 1

We will solve as follows:

$4x=x+16$

Here x represents the girl's current age, now we solve for x:

$\Rightarrow3x=16\Rightarrow x=\frac{16}{3}\Rightarrow x=5.333333333\ldots$

So, her current age is approximately 5.3 years old.