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Average Practice Test 3

Question : 27 of 40

Marks: +1, -0

Solution:

Average age of father and son = 28 years

Total age of both father and son = 56 years

Ratio of their age = 3x : 1x

Let the age of son = x

Age of father = 56 - x

According to the statement,

3x + 1x = 56

4x = 56

x=\frac{56}{4}=14

Age of the son x = 14 years

Age of the father = 56 - x = 56 - 14 = 42 years

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