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人気のある Word Problems >

Carmen is 5 years older than David. A year ago, the sum of their ages was 13. How old are they now?

解

C a r m e n i s 5 ye a rs o l d er t han D a v i d . A ye a r a g o, t h e s u m o f t h e i r a g es w a s 13. Ho w o l d a re t h ey n o w ?

解

Carmen^{'} s age is : 10

David^{'} s age is : 5

解答ステップ

Translate the problem into an equation:

x - 1 + x - 5 - 1 = 13

x

を解く

x - 1 + x - 5 - 1 = 13 : x = 10

発見する age

Carmen^{'} s age is : 10

David^{'} s age is : 5

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