Question (11/66)
The average weight of 45 students in class is 52 kg. Five of them whose average weight is 48 kg, leaves class and other 5 students whose average weight is 54 kg joins in. What is new average weight of the class ?(A) 52.50 kg
(B) 52.67 kg
(C) 53.00 kg
(D) 53.78 kg
Question (12/66)
The average weight of 8 persons increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What is weight of new person ?(A) 85 kg
(B) 75 kg
(C) None of these
(D) Data Inadequate