## Math Word Problems: Solving Age Problems Part 3

This is the third part of the Solving Age Problems of the Math Word Problem Solving Series. In this post, we discuss more complicated age word problems.

**Problem 7**

Anna who is years old and his father Ben who is years old have the same birthday. In how many years will Ben be twice as old as Anna?

**Solution**

As years go by, the number of years added to Ben’s and Anna’s ages is the same. If we let the number of years that have gone by be , then in years, their ages will be

Ben’s Age:

Anna’s Age:

Since in years, Ben will be as twice as old as Anna, if we multiply Anna’s age by , their ages will be equal. So, we can now set up the equation » Read more