ianpaule9127 ianpaule9127

17-06-2024
Physics

Answered

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. 10
b. 8
c. 4
d. 13
e. none of these

Answer :

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