A class consists of 30 students. Each of them has registered for 5 courses. Each course instructor conducts an exam out of 200 marks. The average percentage marks of all 30 students across all…
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A class consists of 30 students. Each of them has registered for 5 courses. Each course instructor conducts an exam out of 200 marks. The average percentage marks of all 30 students across all courses they have registered for, is 80%. Two of them apply for revaluation in a course. If none of their marks reduce, and the average of all 30 students across all courses becomes 80.02%, the maximum possible increase in marks for either of the 2 students is
- 6
- 12
- 3
- 5
Answer and explanation
Correct answer: A - 6
The maximum gain for one student is marks. The class total goes up by marks, and one student's mark can stay fixed while the other gains all six. The value assumes the gain must be split equally.
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IPMAT Indore
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