Question

The average age of 8 members of a football team is 26 years. If a player of 29 years is dropped and a new player of 21 years admitted what is the average age of the present team.​

Answer 1

$8 \times 26 = 208 \\ 208 -29 = 179 \\ 179 + 21 = 200 \\ 200 \div 8 = 25$

answer is 25year