Average - Data Intensity 1 :: Discussion


11.In an examination a pupil�s average marks were 63 per paper. If he had obtained 20 more marks for his Geography paper and 2 more marks for his History paper, his average per paper would have been 65. How many papers were there in the examination?
A.8
B.9
C.10
D.11
Answer:  Option  D
Explanation:

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Published by:Michael Daani

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