Malay Pratap is in the 13th position from the top and in the 17th position from the bottom. He is in the 8th position from the top and in the 13th position from the bottom among the students who passed. How many students failed?
A
7
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B
8
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C
9
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D
Cannot be determined
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E
None of these
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Solution
The correct option is C 9 Total boys =[Malay's palce from the top +Malay's place from the bottom]-1 =[13+17]-1=29 Number of passed students =[Malay's place from the top+Malay's place from the bottom]-1 =[8+13]-1=20 ∴ Number of failed students =29-20=9