The average weight of 8 persons increases by 5 kg when a new person conies in place of one of them weighing 65 kg. What might be the weight of the new person?

The average weight of 8 persons increases by 5 kg when a new person conies in place of one of them weighing 65 kg. What might be the weight of the new person?

A 76 kg

B 76.5 kg

C 85 kg

D 70 kg

Solution

Correct Answer: Option C

65+(8X2.5) = 65+20= 85 (ans.)