Average weight of a class of boys is 24 kg. When a boy having weight 36 kg leaves the class and a new boy having weight 30 kg joins the class, then the average weight become 23.5 kg. How many boys are there in the class?

Average weight of a class of boys is 24 kg. When a boy having weight 3

1.	Average weight of a class of boys is 24 kg. When a boy having weight 36 kg leaves the class and a new boy having weight 30 kg joins the class, then the average weight become 23.5 kg. How many boys are there in the class?
A.	12
B.	8
C.	6
D.	16
Answer» B. 8

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Average weight of a class of boys is 24 kg. When a boy having weight 36 kg leaves the class and a new boy having weight 30 kg joins the class, then the average weight become 23.5 kg. How many boys are there in the class?

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