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
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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
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=> 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
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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