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受欢迎的 Word Problems >

Lucy is four times younger than her sister. If the sum of their age is 30. What are their ages?

解答

Lu cy i s f o u r t im es yo u n g er t han h er s i s t er . I f t h e s u m o f t h e i r a g e i s 30. Wha t a re t h e i r a g es ?

解答

Sister^{'} s age is : 6

Lucy^{'} s age is : 24

求解步骤

Translate the problem into an equation:

4 x + x = 30

求解

x, 4 x + x = 30 : x = 6

找到 age

Sister^{'} s age is : 6

Lucy^{'} s age is : 24

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