The average weight of 7 persons increases by 3 kg when a new person comes in place of one of them weighing 56 kg. What might be the weight of the new person?

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The average weight of 7 persons increases by 3 kg when a new person comes in place of one of them weighing 56 kg. What might be the weight of the new person?

A66 kg

B77 kg

C59 kg

D71 kg

Answer:

B. 77 kg

Read Explanation:

77 kg

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