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شائع Word Problems >

Two years ago, a father was four times older than his son. In twelve years’ time, he will be twice as old as his son. Find the ages of both the father and his son.

الحلّ

Tw o ye a rs a g o, a f a t h er w a s f o u r t im es o l d er t han hi s so n . I n tw e l v e ye a rs ’ t im e, h e w i ll b e tw i ce a s o l d a s hi s so n . F in d t h e a g es o f b o t h t h e f a t h er an d hi s so n .

الحلّ

Father^{'} s age is : 30

Boy^{'} s age is : 9

خطوات الحلّ

Translate the problem into an equation:

x - 2 = 4 (y - 2), x + 12 = 2 (y + 12)

x - 2 = 4 (y - 2), x + 12 = 2 (y + 12) : x = 30, y = 9

Father^{'} s age is : 30

Boy^{'} s age is : 9

أمثلة شائعة

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