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인기 있는 Word Problems >

The sum of the ages of Timmy and John is 30. How old are they, if John is twice as old as Timmy?

해법

T h e s u m o f t h e a g es o f T imm y an d J o hn i s 30. Ho w o l d a re t h ey, i f J o hn i s tw i ce a s o l d a s T imm y ?

해법

Timmy^{'} s age is : 10

John^{'} s age is : 20

솔루션 단계

Translate the problem into an equation:

x + 2 x = 30

x

해결 대상

, x + 2 x = 30 : x = 10

age 찾다

Timmy^{'} s age is : 10

John^{'} s age is : 20

인기 있는 예

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