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In five years, Tina will be twice as old as Amy. Four years ago, Amy was one Third the age of Tina. How old are they now?

Solución

In five years, Tina will be twice as old as Amy. Four years ago, Amy was one Third the age of Tina. How old are they now?

Solución

Tina^{'} s age is : 31

Amy^{'} s age is : 13

Pasos de solución

Translate the problem into an equation:

y - 4 = \frac{1}{3} (x - 4), x + 5 = 2 (y + 5)

y - 4 = \frac{1}{3} (x - 4), x + 5 = 2 (y + 5) : x = 31, y = 13

Tina^{'} s age is : 31

Amy^{'} s age is : 13

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