Question

The average age of a group of 14 person is 27 years and 9 month.two persom each 42 years old,left the group.what will be avearge age of the remaning person in the group

Answer 1

$\textbf{Answer}$

Average age of 14 persons = 27year9months

=> Average age of 14 persons = 27.75 years

So total age of 14 persons = 14 × 27.75

=> Total age of 14 persons = 388.5 years

Since two persons of age 42 year each leave the group.

So total age of those two persons = 42+42 = 84 years.

=>$\textbf{Remaining persons = 12}$
&
Remaining total weight of 12 persons = 388.5-84 = 304.5 years

So the average age of remaining 12 persons = 304.5/12 = 25.375

$\textbf{Average age of remaining persons is 25.375 years}$


$\textbf{Hope It Helps}$

$\textbf{Thanks}$