The average of 15 papers is 50. The average of the first 8 papers is 48 and of the last eight papers is 54. Find the marks obtained in the 8th paper.
- A. 66
- B. 64
- C. 58
- D. 56
The correct answer is option A. 66. Can you explain this answer in the comments?
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1. How to Prepare for Quantitative Aptitude for CAT by Arun Sharma
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