Asked by Freezer
1. 7 students of average age 12 years leave a class of 25 students of average age 14 years. If 2 new students of average age 17 years join the class, what is the average age of the students now in the class?
Answers
Answered by
oobleck
(25*14 - 7*12 + 2*17)/(25-7+2) = 15
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