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The average weight of A,B,C and D is 40 kg . A new person E is also included in the group then the average weight of the group is increased by 1 kg. again a new person F replaces A, then the new average of 5 persons becomes 42.The average weight of B,C,D and F is:

A

42

B

41.25

C

42.5

D

none of these

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The correct Answer is:
B
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