There are 2 sections A and B in a class, consisting of 50 and 70 students respectively. If the average weight of section A is 50kg and that of section B is 70kg, Find the average of the whole class? Select
A) 50.78kg	B) 49.32kg	C) 61.67kg	D) 69.15kg	E) 70.89kg
Total weight of 50+70 students = 50*50 + 70*70= 
<gadget id="calculator">50*50 + 70*70</gadget>
<output>7_400</output>
7400   Average weight of the class is= 7400/120 = 61.67 kg   Answer is 61.67kg
<result>C</result>
There are 2 sections A and B in a class, consisting of 50 and 70 students respectively. If the average weight of section A is 50kg and that of section B is 70kg, Find the average of the whole class?