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Sam is 4 year younger than Amy. 5 years ago he was half her age. How old are they now

Solution

Sam is 4 year younger than Amy. 5 years ago he was half her age. How old are they now

Solution

Sam^{'} s age is : 9

Amy^{'} s age is : 13

Solution steps

Translate the problem into an equation:

x - 5 = \frac{1}{2} (x + 4 - 5)

Solve for

x, x - 5 = \frac{1}{2} (x + 4 - 5) : x = 9

Find age

Sam^{'} s age is : 9

Amy^{'} s age is : 13

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