The average weight of 8 persons increases by 5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person?  Select the correct option
A) 75 kg
B) 65 kg
C) 55 kg
D) 85 kg
E) 105 kg

Rationale: "total weight increased = ( 8 x 5 ) kg = 40 kg . weight of new person = ( 65 + 40 ) kg = 105 kg . answer : e"
Answer: E