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There are two sections A and B of a class, consisting of 38 and 42 students, respectively. If the average weight of the students of section A is 55 kg and that of section B is 32 kg, find the average weight of all the students in the class.
  • a)
    42 kg
  • b)
    42.925 kg
  • c)
    44.925 kg
  • d)
    40.925 kg
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
There are two sections A and B of a class, consisting of 38 and 42 stu...
As per the question,
Average weight of the students of section A = 55 kg 
Total sum of weight of the student of section A = 55×38 = 2090 kg
Average weight of the students of section B = 32 kg
Total sum of weight of the student of section B = 32×42 = 1344 kg
So, average weight of all the students in the class = 
= 42.925 kg.
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There are two sections A and B of a class, consisting of 38 and 42 students, respectively. If the average weight of the students of section A is 55 kg and that of section B is 32 kg, find the average weight of all the students in the class.a)42 kgb)42.925 kgc)44.925 kgd)40.925 kgCorrect answer is option 'B'. Can you explain this answer?
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