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 the other 5 students whose weight is 54 kg join the class. What is the new average weight(in kg) in the class?
(a) 52
(b) 52
(c) 52
(d) None of these
(b) 52 (c) 52 (d) None of theseQuestion ID - 50857 | SaraNextGen Top Answer 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 the other 5 students whose weight is 54 kg join the class. What is the new average weight(in kg) in the class?
(a) 52 (b) 52 (c) 52 (d) None of these
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 the other 5 students whose weight is 54 kg join the class. What is the new average weight(in kg) in the class?
(a) 52 (b) 52 (c) 52 (d) None of these
1 Answer
127 votes
Answer Key / Explanation : (c) -
Sum of the weights of the students after replacement
= 
kg = 2370 kg.
New average = 
kg.
127 votes
Answer Link
127