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In a class there are 27 students whose a...

In a class there are 27 students whose average age is decreased by 4 months, when 4 students aged, 16, 17, 18 and 19 years respectively are replaced by the same number of students. Find the average age of the new students.

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The correct Answer is:
15.25 years
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ADVANCED MATHS BY ABHINAY MATHS ENGLISH-AVERAGE-QUESTIONS
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