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Phổ biến Word Problems >

Mel is 3 years older than Rahfat and Aurelio is twice as old as Mel. The sum of their ages is 57. How old is Mel?

Lời Giải

M e l i s 3 ye a rs o l d er t han R ah f a t an d A u re l i o i s tw i ce a s o l d a s M e l . T h e s u m o f t h e i r a g es i s 57. Ho w o l d i s M e l ?

Lời Giải

Mel^{'} s age is : 15

Các bước giải pháp

Translate the problem into an equation:

x + x - 3 + 2 x = 57

Giải

x, x + x - 3 + 2 x = 57 : x = 15

Mel^{'} s age is : 15

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