"The average weight of 45 students in a class is 52 kg. Five of them whose average
Channel: Doubtnut
Date: 2020-04-05

"The average
 weight of 45 students in a class is 52 kg. Five of them whose average weight
 is 48 kg leave the class and other 5 students whose average weight is 54 kg
 join the class. What is the new average weight (in kg) of the class?
`52 1/3`
(b) `52 1/2`
(c) `52 2/3`
(d) None of
 these"