Question

The average age of five members of a family is 65 and the ages of four of them are 55, 42, 75 and 92. What is the age of the fifth member?

Answer 1

Answer:

61

Step-by-step explanation:

given that

⇒Average age of five member=65

⇒Age of four member= 55,42,75,and 92

⇒Find out the fifth member

Average age =total age÷ number of people

⇒65=(55+42+75+92+x) ÷ 5

⇒65=(264+x) ÷ 5

⇒65×5=264+x

⇒325=264+x

⇒325-264=x

⇒61=x