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受欢迎的 Word Problems >

mary is four years younger than bob. bob is three times sams age. the sum of their ages is 59 years. find out the age of each person.

解答

ma ry i s f o u r ye a rs yo u n g er t han b o b . b o b i s t h ree t im es s am s a g e . t h e s u m o f t h e i r a g es i s 59 ye a rs . f in d o u t t h e a g e o f e a c h p erso n .

解答

Bob^{'} s age is : 27

Mary^{'} s age is : 23

Sam^{'} s age is : 9

求解步骤

Translate the problem into an equation:

x - 4 + x + \frac{x}{3} = 59

求解

x, x - 4 + x + \frac{x}{3} = 59 : x = 27

找到 age

Bob^{'} s age is : 27

Mary^{'} s age is : 23

Sam^{'} s age is : 9

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