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19. A is one of 6 horses entered for a r...

19. A is one of 6 horses entered for a race, and is to be ridden by one of two jockeys B and C. It is 2 to 1 that B rides A, in whic case all the horses are equally likely to win; if C rides A, his chance is trebled what are the odds against his winning

A

`5:13`

B

`5:18`

C

`13:5`

D

None of these

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The correct Answer is:
C
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