in a convocation average weight of 16 members is 55 kg, avg weight of 25 members is 45 kg and avg of 14 members is 40 kg. then average weight of all members
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16×55=880
25×45=1125
14×40=560
=2565
55
2565÷55=46.6
25×45=1125
14×40=560
=2565
55
2565÷55=46.6
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