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Phổ biến Word Problems >

The sum of the ages of Roy and Shantel is 115 years. 10 years ago, Roy's age was 4 times Shantel's age. How old is Roy now?

Lời Giải

T h e s u m o f t h e a g es o f R oy an d S han t e l i s 115 ye a rs . 10 ye a rs a g o, R o y^{'} s a g e w a s 4 t im es S han t e l^{'} s a g e . Ho w o l d i s R oy n o w ?

Lời Giải

Roy^{'} s age is : 86

Các bước giải pháp

Translate the problem into an equation:

x - 10 = 4 (115 - x - 10)

Giải

x, x - 10 = 4 (115 - x - 10) : x = 86

Roy^{'} s age is : 86

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