Answers

2016-05-04T07:57:13+05:30
Hope this is right...........
 The average weight of 40 members = 47.5kg
 The total weight of 40 members = 47.5 × 40 = 1900
 
One member leaves so remaining = 40 - 1 = 39 members

The average weight of 39 members = 47.5 - 500 ÷ 1000(To convert grams into kg) = 47kg
The total weight of 39 members = 47 × 39 =1833

∴The weight of the outgoing member = 1900 - 1833 =67kg.
 The ans: 67kg
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