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In twenty years, Jon's age would be thrice his age four years ago. How old will Jon be in two years?

Solution

In twenty years, Jon's age would be thrice his age four years ago. How old will Jon be in two years?

Solution

Jo n^{'} s age in 2 years : 18

Solution steps

Translate the problem into an equation:

x + 20 = 3 (x - 4)

Solve for

x, x + 20 = 3 (x - 4) : x = 16

Find Jon's age in 2 years:

18

Jo n^{'} s age in 2 years : 18

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