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人気のある Word Problems >

Tina is 10 years older than Grace. In 4 years time, Tina will be twice as old as Grace. How old are they now.

解

T ina i s 10 ye a rs o l d er t han G r a ce . I n 4 ye a rs t im e, T ina w i ll b e tw i ce a s o l d a s G r a ce . Ho w o l d a re t h ey n o w .

解

Tina^{'} s age is : 16

Grace^{'} s age is : 6

解答ステップ

Translate the problem into an equation:

x + 4 = 2 (x - 10 + 4)

x

を解く

x + 4 = 2 (x - 10 + 4) : x = 16

発見する age

Tina^{'} s age is : 16

Grace^{'} s age is : 6

人気の例

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