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Phổ biến Word Problems >

Sam is 4 year younger than Amy. 5 years ago he was half her age. How old are they now

Lời Giải

S am i s 4 ye a r yo u n g er t han A m y . 5 ye a rs a g o h e w a s ha l f h er a g e . Ho w o l d a re t h ey n o w

Lời Giải

Sam^{'} s age is : 9

Amy^{'} s age is : 13

Các bước giải pháp

Translate the problem into an equation:

x - 5 = \frac{1}{2} (x + 4 - 5)

Giải

x, x - 5 = \frac{1}{2} (x + 4 - 5) : x = 9

Tìm age

Sam^{'} s age is : 9

Amy^{'} s age is : 13

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