The average weight of a class of 24 students is 30kg. When the weight of the teacher is also included,the average weight increase by 1kg. What is the weight of the teacher?
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Total weight of all the student - 24*30
-720 kg
If teachers weight is also included then average weight increase by 1 kg ,
So, Average weight of students including teacher will be 31.
Total weight of student and teacher -- 25*31
--775 kg
Weight of teacher - 775 kg -720 kg
- 55 kg
Therefore, the weight of teacher is 55 kg
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