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Popular Word Problems >

In five years time a father will be three times as old as his son. Four years ago, the father was six times as old as his son. Find their present ages.

Solution

I n f i v e ye a rs t im e a f a t h er w i ll b e t h ree t im es a s o l d a s hi s so n . F o u r ye a rs a g o, t h e f a t h er w a s s i x t im es a s o l d a s hi s so n . F in d t h e i r p rese n t a g es .

Solution

Father^{'} s age is : 40

Boy^{'} s age is : 10

Solution steps

Translate the problem into an equation:

x + 5 = 3 (y + 5), x - 4 = 6 (y - 4)

x + 5 = 3 (y + 5), x - 4 = 6 (y - 4) : x = 40, y = 10

Father^{'} s age is : 40

Boy^{'} s age is : 10

Popular Examples

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