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Tom is now twice as old as Jerry. Four years ago, he was three times as old as Jerry was then. How old is Tom now

Solución

Tom is now twice as old as Jerry. Four years ago, he was three times as old as Jerry was then. How old is Tom now

Solución

Tom^{'} s age is : 16

Pasos de solución

Translate the problem into an equation:

2 x - 4 = 3 (x - 4)

Resolver para

x, 2 x - 4 = 3 (x - 4) : x = 8

Hallar Tom's age

: 16

Tom^{'} s age is : 16

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