The mean weight of 100 students in a class is 46 kg. The mean weight o – McqOptions

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1.	The mean weight of 100 students in a class is 46 kg. The mean weight of boys is 50 and of girls is 40 kg. The number of boys is:
A.	50
B.	60
C.	70
D.	65
Answer» C. 70

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