There are 2 sections A and B in a class, consisting of 40 and 30 students respectively.
There are 2 sections A and B in a class, consisting of 40 and 30 students respectively. If the average weight of section A is 50kg and that of section B is 60kg, Find the average of the whole class?
Answer/Solution
54.28kg
Steps/Work
Total weight of 40+30 students = 40*50 + 30*60 = 2000+1800
Average weight of the class is = 3800/70 = 54.28 kg
Answer is E
Average weight of the class is = 3800/70 = 54.28 kg
Answer is E