The average weight of a group of 30 friends increases by 2 kg when the weight of their football coach was removed. If average weight of the group after removing the weight of the football coach is 28 kg, what is the weight of their football coach?	Answers:
A) 31 kg
B) 60 kg
C) 61 kg
D) 62 kg
E) 88 kg
let c=coach's weight   original total weight=(30 friends)(30 kg avge)=900kg   (900-c)/(30-1)=28 kg avge   c=88 kg   Answer - 88 kg
<result>E</result>
The average weight of a group of 30 friends increases by 2 kg when the weight of their football coach was removed. If average weight of the group after removing the weight of the football coach is 28 kg, what is the weight of their football coach?