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An examination is attempted by 5000 gra...

An examination is attempted by 5000 graduates, 2000 post-graduates and 1000 doctorate holders, The probabilities that a graduate, a post graduate and a doctorate holder will pass the examination are `2/3, 3/4, 4/4` respectively. If one of the examine passed the examination, then the probability that he is a post-graduate is

A

`(45)/(169)`

B

`(100)/(169)`

C

`(24)/(169)`

D

`(5)/(64)`

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The correct Answer is:
A
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