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人気のある Word Problems >

george is 7 times as old as his son .in 25 years time he will be twice as old as his son .calculate his son,s present age

解

g eor g e i s 7 t im es a s o l d a s hi s so n . in 25 ye a rs t im e h e w i ll b e tw i ce a s o l d a s hi s so n . c a l c u l a t e hi s so n, s p rese n t a g e

解

Son^{'} s age is : 5

解答ステップ

Translate the problem into an equation:

7 x + 25 = 2 (x + 25)

x

を解く

7 x + 25 = 2 (x + 25) : x = 5

Son^{'} s age is : 5

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