Solution:
Given:
The average age of a sports team of 15 members is 23.4 years.
A new member joins the team and the average age now becomes 23 years.
Concept Used:
Average = Sum of Observations/Number of Observations
Calculation:
The sum of the ages of the team = 23.4 × 15
⇒ 351
When a new player joins the team the sum of their ages becomes = 23 × 16
⇒ 368
The age (in years) of the new member is = 368 - 351
⇒ 17 years.
∴ The age (in years) of the new member is 17 years.
