The average weight of 29 students is 40 kg. If the weight of teacher be included the average weight increased by 400 gms.The weight of the teacher is?
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The total weight of the 29 students =29*40
=1160
400gms of average is added to the 40kg of average weight of students
therefore
the total weight
=30*40.4 ..... (400*10^-3)
= 1212
therefore the weight of the teacher =1212-1160
=52 kg
ashwini1610:
I hope this helps you
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