The mean weight of 150 students in a certain class is 60 kg. The mean – McqOptions

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1.	The mean weight of 150 students in a certain class is 60 kg. The mean weight of the boys is 70 kg and that of the girls is 55 kg. What is the number of boys and girls respectively in the class?
A.	75 and 75
B.	50 and 100
C.	70 and 80
D.	100 and 50
Answer» C. 70 and 80

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