A Third As Old

Barry is 67 years old. His daughter is 43. When was she 1/3 as old as him?

31 years ago.Here’s one way to solve it.Let x = how many years agoWe get this equation: 67 – x = 3 × (43 – x)Solving for x gives us 31.

31 years ago.

Here’s one way to solve it.

Let x = how many years ago

We get this equation: 67 – x = 3 × (43 – x)

Solving for x gives us 31.

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