The arithmetic mean of the scores of a group of students in a test was 52. The brightest 20% of them secured a mean score of 80 and the dullest 25% a mean score of 31. The mean score of remaining 55% is?

✔ Correct Answer: C. 51.4 approx.

The correct answer to the question “The arithmetic mean of the scores of a group of students in a test was 52. The brightest 20% of them secured a mean score of 80 and the dullest 25% a mean score of 31. The mean score of remaining 55% is?” is 51.4 approx.. This question belongs to Mathematics. Practice the related questions below to master this topic for your FPSC, PPSC and NTS tests.

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