The average weight of a group of boys is 30 kg. After a boy of weight – McqOptions

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1.	The average weight of a group of boys is 30 kg. After a boy of weight 35 kg joins the group, the average weight of the group goes up by 1 kg. Find the number of boys in the group originally ?
A.	6
B.	8
C.	4
D.	5
Answer» D. 5

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