Question

Average age of 21 players of a squad is 27 years. If the age of coach is included the average is increased by 2 years. What is the age of the coach?

1. 65 year
2. 32 year
3. 71 year
4. 78 year

Answer 1

Correct Answer - Option 3 : 71 year

Given:

Average age of 21 players of a squad = 27 years

After coach age include the team average is increased by = 2 years

Concept:

Average value = Sum of all values/Number of values

Calculation:

Let, the age of the coach = x years

According to the question,

⇒ 21 × 27 + x = 22 × (27 + 2)

⇒ 567 + x = 638

⇒ x = 71

∴ Age of the coach = 71 years