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受欢迎的 Word Problems >

two brothers bill and eric are 4 years apart and bill is the older of the two. if the sum of their ages is 28 how old is bill and how old is eric?

解答

tw o b ro t h ers bi ll an d er i c a re 4 ye a rs a p a r t an d bi ll i s t h e o l d er o f t h e tw o . i f t h e s u m o f t h e i r a g es i s 28 h o w o l d i s bi ll an d h o w o l d i s er i c ?

解答

Eric^{'} s age is : 26

Bill^{'} s age is : 2

求解步骤

Translate the problem into an equation:

2 + x = 28

求解

x, 2 + x = 28 : x = 26

找到 age

Eric^{'} s age is : 26

Bill^{'} s age is : 2

流行的例子

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