The average weight of 3 groups of friends of 50, 30 & 20 members re – McqOptions

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1.	The average weight of 3 groups of friends of 50, 30 & 20 members respectively, are 50 kg 52 kg and 55 kg. What is the average weight of all the friends taken together?
A.	45.34 kg
B.	49.24 kg
C.	50.57 kg
D.	51.6 kg
Answer» E.

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