Question

the average weight of 45 students of section B is 70 kg and average weight of 35 students of section C is 60 kg what is the average weight of both sections​

Answer 1

=> Average weight of both sections is 65.625.

Solution :-

=> The average weight of 45 student of section 'B' is 70 kg.

=> 70 * 45 = 3150

=> The average weight of 35 students of section 'C' is 60 kg.

=> 60 * 35 = 2100.

=> To find the average weight of both sections.

=> So, (3150 + 2100)/(45 + 35) = 5250/80 = 65.625

I hope this will help you dear..

always stay safe and stay healthy..

Answer 2

Answer: 65.625

Step-by-step explanation:

9              7

45           35

B               C

70     :       60

        x        

let avg   65

5 * 9 + (-5*7)= 10

10/16= . 625

so avg is 65.625