Question

. The average age of the father and his four sons is 20 yrs. The average age of
the four sons is 11 years. What is the age of the father?​

Answer 1

$\rm\bf\underline{Solution:}$

Total age of father and son =20×2=40 yr

Age of son =10 years

Age of father =40−10=30 years

Answer 2

$\huge \underline \pink {answer}$

Total age of father and son =20×2=40 yr

Age of son =10 years

Age of father =40−10=30 years