There are two sections A and B of a class, consisting of 36 and 44 students respectively. If the average weight of sections A is 40 kg and that of sections b is 35 kg. Find the average weight of the whole class  Choose the correct choice from the following choices:
A) 36.25
B) 37.25
C) 38.35
D) 39.25
E) None
Solution   Total weight of(36+44)Students	= (36x40+44x35)Kg   = 2980 kg.   Average weight of the whole class	= (2980 / 80)   = 37.25.   Answer 37.25
<result>B</result>
There are two sections A and B of a class, consisting of 36 and 44 students respectively. If the average weight of sections A is 40 kg and that of sections b is 35 kg. Find the average weight of the whole class