Question

The average age of eight members of a family is 45 years. If one of them is excluded the average is decreases by 2 years. Find the age of excluded person?

• A. 59 years
• B. 78 years
• C. 50 years
• D. 45 years

Answer 1

Answer:

A. 59 years

Total age of eight members of a family = 45 × 8 = 360 years After excluding one person’s age, The new average age of Seven family members = 45 - 2 = 43 years New Total age of Seven members of a family = 43 × 7 = 301 years Then the age of excluded person ⇒ 360 – 301 ⇒ 59 years