SOLUTION: 12 people have an average weight of 68 kg is 3 of then leave the average of remaining 9 members was found to be 66.5 kg find the average weight of the member who left ? give me ans
Algebra ->
Average
-> SOLUTION: 12 people have an average weight of 68 kg is 3 of then leave the average of remaining 9 members was found to be 66.5 kg find the average weight of the member who left ? give me ans
Log On
Question 1058330: 12 people have an average weight of 68 kg is 3 of then leave the average of remaining 9 members was found to be 66.5 kg find the average weight of the member who left ? give me answer Answer by jorel555(1290) (Show Source):
You can put this solution on YOUR website! If 12 people have an average of 68 kg, then their total weight is 12 x 68, or 816 kg. 3 leave, leaving an average of 66.5 kg x 9 people, or 598.5 total kgs.
(816-598.5)/3=72.5 as the average weight of the members who left the group. ☺☺☺☺
(