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Noy is twice as old as Kris. In eight years, Noy will be 4years older than Kris. Find their present ages.

Solution

Noy is twice as old as Kris. In eight years, Noy will be 4years older than Kris. Find their present ages.

Solution

Kris^{'} s age is : 4

Noy^{'} s age is : 8

Solution steps

Translate the problem into an equation:

2 x + 8 - 4 = x + 8

Solve for

x, 2 x + 8 - 4 = x + 8 : x = 4

Find age

Kris^{'} s age is : 4

Noy^{'} s age is : 8

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