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Question

Choose the correct answer from the alternatives given.
The average age of eleven cricket players is 20 years. If the age of the coach is also included, the average age increases by 10%. The age of the coach is

A
48 year
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B
44 year
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C
40 year
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D
36 year
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Solution

The correct option is B 44 year
Average of 11 players =20 years.
Sum of age of 11 players =20×11=220
Average age of players and coach 1.1×2022 years
Sum of ages of players & coach =22×12=264 years.
Age of coach =264220=44 years.

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