Answers

2015-11-02T19:32:52+05:30
The answer should be 40.
I'm not sure that is this answer correct or not but it should be 40 only.
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2015-11-02T20:15:50+05:30
Sum of ages=25*16=400
sum of ages of 24 students=4*15=360
age of teacher=400-360
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