the average weight of 24 students of section a of class is 25 kg the average weight of 26 students of section B of same class is 50 kg the average weight of all 50 student age
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36 kg answer.........
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shahsad59:
36 is the answer
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let the weight of all the students of section a be 'x'.
average weight = x/24
25kg=x/24
25*24=x
so the total weight of 24 students in section A = 600kg
let the total weight of students in section B = 'y'
average weight = y/26
50= y/26
50*26 = y
1300 = y
so the total weight of 26 students in section B = 1300kg
average of weights of all 50 members =
weight of students of section A + weight of students of section B / 50
=> 600+1300/50
=>1900/50
= 38
average weight = x/24
25kg=x/24
25*24=x
so the total weight of 24 students in section A = 600kg
let the total weight of students in section B = 'y'
average weight = y/26
50= y/26
50*26 = y
1300 = y
so the total weight of 26 students in section B = 1300kg
average of weights of all 50 members =
weight of students of section A + weight of students of section B / 50
=> 600+1300/50
=>1900/50
= 38
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