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受欢迎的 Word Problems >

John is 4 times as old as Martha. In 5 years, the sum of their ages is 50.

解答

J o hn i s 4 t im es a s o l d a s M a r t ha . I n 5 ye a rs, t h e s u m o f t h e i r a g es i s 50.

解答

Martha^{'} s age is : 8

John^{'} s age is : 32

求解步骤

Translate the problem into an equation:

4 x + 5 + x + 5 = 50

求解

x, 4 x + 5 + x + 5 = 50 : x = 8

找到 age

Martha^{'} s age is : 8

John^{'} s age is : 32

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