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受欢迎的 Word Problems >

8 years from now John will be 34 years old. The current sum of the ages of John and Mary is 52. How old is Mary right now?

解答

8 ye a rs f ro m n o w J o hn w i ll b e 34 ye a rs o l d . T h e c u rre n t s u m o f t h e a g es o f J o hn an d M a ry i s 52. Ho w o l d i s M a ry r i g h t n o w ?

解答

Mary^{'} s age is : 26

求解步骤

Translate the problem into an equation:

x + 8 = 34

求解

x, x + 8 = 34 : x = 26

找到 Mary's age

: 26

Mary^{'} s age is : 26

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