Question

2. there are two sections a and b of a class, consisting of 36 and 44 students respectively. If the average weight of section a is 40kg and that of section b is 35kg, find the average weight of the whole class.

Answer 1

Answer:

Step-by-step explanation:

average = sumof all observations divided by total number of observations

therefore sum of weights students in class 'a' is 36×40 = 1440

similarrly weight of section 'b'

44×35=1540 therefore weight of total class is 1440+1540= 2980

total number of student in class=36+44=80

average weight of class= 2980/80

=37.25 kg

Answer 2

Step-by-step explanation:

answer is 37 .24 after dividing it