The average weight of 20 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.	Choose the correct choice from the following answers: A) 48.79286 B) 42.25 C) 50.87364 D) 51.25 E) 52.25474
Explanation:   48.79286verage weight of 20 boys = 50.25   Total weight of 20 boys = 50.25 × 20   48.79286verage weight of remaining 8 boys = 45.15   Total weight of remaining 8 boys = 45.15 × 8   Total weight of all boys in the class = (50.25 × 20)+ (45.15 × 8)   Total boys = 20 + 8= 
<gadget id="calculator">20 + 8</gadget>
<output>28</output>
28   48.79286verage weight of all the boys= (50.25×20)+(45.15×8)/28   =   48.79286nswer: Option 48.79286
<result>A</result>
The average weight of 20 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.