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人気のある Word Problems >

Skip is now three times as old as Paul. In 5 years, Skip will be twice as old as Paul will be then. What will their ages be in five years?

解

S ki p i s n o w t h ree t im es a s o l d a s P a u l . I n 5 ye a rs, S ki p w i ll b e tw i ce a s o l d a s P a u l w i ll b e t h e n . Wha t w i ll t h e i r a g es b e in f i v e ye a rs ?

解

Paul age in 5 years : 10

Skip age in 5 years : 20

解答ステップ

Translate the problem into an equation:

3 x + 5 = 2 (x + 5)

x

を解く

3 x + 5 = 2 (x + 5) : x = 5

発見する age

Paul age in 5 years : 10

Skip age in 5 years : 20

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