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פּוֹפּוּלָרִי 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.

פתרון

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 .

פתרון

Father^{'} s age is : 30

Boy^{'} s age is : 9

צעדי פתרון

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

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