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Phổ biến Word Problems >

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

Lời Giải

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 tw o 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

Lời Giải

Christian^{'} s age is : x

Các bước giải pháp

Translate the problem into an equation:

x - 20 = 2 (x - 20)

Giải

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

Tìm Christian's age

: x

Christian^{'} s age is : x

Ví dụ phổ biến

Chris is twice as old as Don. Next year, the sum of their ages will be four times as much as Don's age last year. Find their present ages.A mother is currently 7 times older than her son. In 3 years time, she will be 5 times older than her son.Twenty is the product of 4 and a number The perimeter of a rectangular painting is 242cm :If the width of the painting is 55cm , what is its length?mary skates at a circular rink that has a bán kính of 5 yards. what is the area of the skating rink