Question

> Solve this riddle.• Zac is 18.• The ratio of Zac's age to Ed's age is 2:1.• Tim's age is 2/3 Zac's age.What is the difference between Ed'sage and Tim's age?

Answer 1

Zac's age to Ed's age is:

2:1

$\begin{gathered} 18\cdot\frac{1}{2}=9-->\text{ Ed's age} \\ Tim^{\prime}s\text{ 2/3 Zac's age} \\ 18\cdot\frac{2}{3}=12\text{ --> Tim's age} \end{gathered}$

The difference between Ed's and Tim's age is:

12-9=3 years