The average weight of 8 persons increases by 2.5 kg when a new person comes in p

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The average weight of 8 persons increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person ?

A. 70 kg
B. 75 kg
C. 80 kg
D. 85 kg

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