HBell7913 HBell7913

11-03-2024
Mathematics

contestada

The mean weight of 150 students in a certain class is 60 kilograms. The mean weight of boys in the class is 70 kilograms and that of the girls is 55 kilograms, then the number of boys and girls are

A. 100, 50
B. 50, 100
C. 60, 90
D. 75,75

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