Mathematics
Medium
Question
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
✓ Official correct answer
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A
8
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B
9
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C
10
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D
11
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