Question

average weight of a class of 20 students is 40.a teacher of weight 40 in the class. what is the new average weight of class?​

Answer 1

Answer:

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Step-by-step explanation:

initial total weight of class = 800

new weight = 800+40 = 840

new average weight = 840/21

= 40

so, there is no change in average weight

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