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Populaire >

Five year ago Nina was twice as old as Sam. In five years she will be 1.5 times as old as Sam. How are Sam and Nina now.

Solution

Five year ago Nina was twice as old as Sam. In five years she will be 1.5 times as old as Sam. How are Sam and Nina now.

Solution

Nina^{'} s age is : 25

Sam^{'} s age is : 15

étapes des solutions

Translate the problem into an equation:

x - 5 = 2 (y - 5), x + 5 = 1.5 (y + 5)

x - 5 = 2 (y - 5), x + 5 = 1.5 (y + 5) : x = 25, y = 15

Nina^{'} s age is : 25

Sam^{'} s age is : 15

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