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A boy appears for 5 papers , each of the...

A boy appears for 5 papers , each of the same number of maximum marks .He scores in each of the papers in the ratio of `6 : 7:8:9:10` .If his average score in all the five papers together was `60%` , then in how many papers did he get more than `50%` marks ?

A

2

B

3

C

4

D

5

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