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受欢迎的 Word Problems >

a mother is 4 times as old as her son. two years ago, the sum of their ages is 51. how old is each?

解答

a m o t h er i s 4 t im es a s o l d a s h er so n . tw o ye a rs a g o, t h e s u m o f t h e i r a g es i s 51. h o w o l d i s e a c h ?

解答

Boy^{'} s age is : 11

Mother^{'} s age is : 44

求解步骤

Translate the problem into an equation:

4 x - 2 + x - 2 = 51

求解

x, 4 x - 2 + x - 2 = 51 : x = 11

找到 age

Boy^{'} s age is : 11

Mother^{'} s age is : 44

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