ProbabilityHard
Question
A is one of the 6 horses entered for a race and is to be ridden by one of two jockeys B or C. It is 2 to 1 that B rides A, in which case all the horses are equally likely to win, if C rides A, his chance is trebled, Then the odds against his winning are -
Options
A.
B.
C.
D.
Solution
When B rides A probability of winning of
A =
When C rides A probability of winning of
A =
× 3
∴ P(A) =
Now odds against his winning =
A =
When C rides A probability of winning of
A =
× 3∴ P(A) =
Now odds against his winning =
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