The captain of a cricket team of 11 members is 26 years old and the wicket keeper is
3 years older. If the ages of these two are excluded, the average age of the remaining
players is one year less than the average age of the whole team. Find out the average
age of the team.
Number of members in the team = 11
Let the average age of of the team = x
=>
Sum of the ages of all the 11 members of the team
11
=
x
=> Sum of the ages of all the 11 members of the team = 11x
Age of the captain = 26
Age of the wicket keeper = 26 + 3 = 29
Sum of the ages of 9 members of the team excluding captain and wicket keeper
= 11x - 26 - 29 = 11x - 55
Average age of 9 members of the team excluding captain and wicket keeper
=
11
x
−
55
9
Given that
Given that
11
x
−
55
9
=
(
x
−
1
)
=> 11x - 55 = 9(x - 1)
=> 11x - 55 = 9x - 9
=> 2x = 46
=> x = 23
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