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Total Number of Students who appeared and qualified from various cities at a Management Entrance Exam: What is the difference between the average number of students who appeared in the entrance exam…

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Total Number of Students who appeared and qualified from various cities at a Management Entrance Exam:

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What is the difference between the average number of students who appeared in the entrance exam from all given cities and the average number of students who qualified from all the cities together?
  1. 950
  2. 990
  3. 1100
  4. 1020

Answer and explanation

Correct answer: A - 950
Appeared: 3000+2250+3250+2500+3000 = 14000, average 2800. Qualified: 1750+1250+2250+2000+2000 = 9250, average 1850. Difference 950.

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