The average weight of a group of boys is 30 kg. After a boy of weig – 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.	4
B.	5
C.	6
D.	7
Answer» B. 5

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