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Four years ago, Dennis was 3 times as old as his nephew, Richie.How old is Dennis now if the sum of their present ages is 64?

Solution

Four years ago, Dennis was 3 times as old as his nephew, Richie.How old is Dennis now if the sum of their present ages is 64?

Solution

Dennis^{'} s age is : 46

Solution steps

Translate the problem into an equation:

x - 4 = 3 (64 - x - 4)

Solve for

x, x - 4 = 3 (64 - x - 4) : x = 46

Dennis^{'} s age is : 46

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