A group of 7 students with average weight of 66 kg is joined by anothe – McqOptions

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1.	A group of 7 students with average weight of 66 kg is joined by another 5 students with average of 64 kg. What is the average of the total group?
A.	64.5 kg
B.	64.8 kg
C.	65.17 kg
D.	65.3 kg
Answer» D. 65.3 kg

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