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Q. The mean weight of 150 students in a class is 60 Kg. The mean weight of Boy students is 70 Kg and that of a girl students is 55 kg. Find the number of Boys and Girls in the class.

(A) 50 and 100
(B) 100 and 50
(C) 150 and 200
(D) 200 and 150

Correct Answer - Option(A)

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