The mean weight of 30 students of a class is 40kg. If the weight of the teacher is added, the mean weight goes up by 1 kg. Find the weight of the teacher.
Answers
Answered by
1
Answer:
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Step-by-step explanation:
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Answered by
4
Answer:
71 kg
Step-by-step explanation:
Total students weight =30 ×40
=1200kg
total of total adding teacher =31×41
=1271 kg
so teachers weight = 1271-1200
=71 kg
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