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Two years ago John was three times as old as Frango. Five years from now John will be twice as old as Frango. what is the sum of their ages right now?

Solución

Two years ago John was three times as old as Frank. Five years from now John will be twice as old as Frank. what is the sum of their ages right now?

Solución

the sum of their ages : 32

Pasos de solución

Translate the problem into an equation:

x - 2 = 3 (y - 2), x + 5 = 2 (y + 5)

x - 2 = 3 (y - 2), x + 5 = 2 (y + 5) : x = 23, y = 9

Hallar the sum of their ages :

32

the sum of their ages : 32

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