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受欢迎的 Word Problems >

Kevin is 6 years older than Timothy, but 4 years ago Kevin was twice as old as Timothy, how old is kevin and timothy

解答

Ke v in i s 6 ye a rs o l d er t han T im o t h y, b u t 4 ye a rs a g o Ke v in w a s tw i ce a s o l d a s T im o t h y, h o w o l d i s k e v in an d t im o t h y

解答

Kevin^{'} s age is : 16

Timothy^{'} s age is : 10

求解步骤

Translate the problem into an equation:

x - 4 = 2 (x - 6 - 4)

求解

x, x - 4 = 2 (x - 6 - 4) : x = 16

找到 age

Kevin^{'} s age is : 16

Timothy^{'} s age is : 10

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