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受欢迎的 Word Problems >

When Christian and Cynthia were married, Cynthia was 2 years younger than Christian. How old was Christian on his wedding day if 20 years ago he was twice as old as Cynthia?

解答

Wh e n C h r i s t ian an d C y n t hia w ere ma rr i e d, C y n t hia w a s 2 ye a rs yo u n g er t han C h r i s t ian . Ho w o l d w a s C h r i s t ian o n hi s w e dd in g d a y i f 20 ye a rs a g o h e w a s tw i ce a s o l d a s C y n t hia ?

解答

Christian^{'} s age is : x

求解步骤

Translate the problem into an equation:

x - 20 = 2 (x - 20)

求解

x, x - 20 = 2 (x - 20) : x = 20

找到 Christian's age

: x

Christian^{'} s age is : x

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