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Phổ biến Word Problems >

Jenny is 12 years older than Steve. Five years ago, Jenny was four times older than Steve was then. How old are Jenny and Steve now?

Lời Giải

J e nn y i s 12 ye a rs o l d er t han St e v e . F i v e ye a rs a g o, J e nn y w a s f o u r t im es o l d er t han St e v e w a s t h e n . Ho w o l d a re J e nn y an d St e v e n o w ?

Lời Giải

Jenny^{'} s age is : 21

Steve^{'} s age is : 9

Các bước giải pháp

Translate the problem into an equation:

x - 5 = 4 (x - 12 - 5)

Giải

x, x - 5 = 4 (x - 12 - 5) : x = 21

Tìm age

Jenny^{'} s age is : 21

Steve^{'} s age is : 9

Ví dụ phổ biến

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