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A doctor is to visit a patient. Form the...

A doctor is to visit a patient. Form the past experience, it is known that the probabilities that he will come by train, bus, scooter or by other means of transport are respectively `3/(10),1/5,1/(10)a n d2/5dot` The probability that he will be late are `1/4,1/3a n d1/(12)` if he comes by train, bus and scooter respectively, but if he comes by other means f transport, then he will not be late. When he arrives he is late. What is the probability that he comes by train?

A

`(1)/(2)`

B

`(1)/(3)`

C

`(2)/(3)`

D

`(3)/(5)`

Text Solution

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The correct Answer is:
A
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