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Alfred is four times as old as his brother. Four years from now, he will be twice as old as his:brother. Find their present ages.

Solution

Alfred is four times as old as his brother. Four years from now, he will be twice as old as his:brother. Find their present ages.

Solution

Brother^{'} s age is : 2

Alfred^{'} s age is : 8

Solution steps

Translate the problem into an equation:

4 x + 4 = 2 (x + 4)

Solve for

x, 4 x + 4 = 2 (x + 4) : x = 2

Find age

Brother^{'} s age is : 2

Alfred^{'} s age is : 8

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