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Phổ biến Word Problems >

John is three times as old as his son Jack. The sum of their ages is 48. Calculate how old John is.

Lời Giải

J o hn i s t h ree t im es a s o l d a s hi s so n J a c k . T h e s u m o f t h e i r a g es i s 48. C a l c u l a t e h o w o l d J o hn i s .

Lời Giải

John^{'} s age is : 36

Các bước giải pháp

Translate the problem into an equation:

3 x + x = 48

Giải

x, 3 x + x = 48 : x = 12

Tìm John's age

: 36

John^{'} s age is : 36

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