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The average age of 15 students of a cl...

The average age of 15 students of a class is 15 years .Out of these the average age of 5 students is 14 years and that of the other nine students is 16 years . What is the age of the 15th student ?

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The correct Answer is:
`=11` years .
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S CHAND IIT JEE FOUNDATION-AVERAGE -UNIT TEST -3
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