In an examination, a student's average marks were 55 per paper. If he – McqOptions

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1.	In an examination, a student's average marks were 55 per paper. If he had obtained 10 more marks for his Maths paper and 2 more marks for his Biology paper, his average per paper would have 57. How many papers were there in the examination.
A.	5
B.	6
C.	7
D.	8
Answer» C. 7

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