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A student appears for tests 1, 2 and 3. ...

A student appears for tests 1, 2 and 3. The studentis successful if he passes either in tests 1 and 2 or tests 1 and 3. The probabilities of the student passing in tests 1, 2 and 3 are p, q and `(1)/(2)`, respectively. If the probability that the student is successful is `(1)/(2)`, then

A

`p=1, q=0`

B

`p=(2)/(3), q=(1)/(2)`

C

`p=(3)/(5), q=(2)/(3)`

D

infinitely values of p and q

Text Solution

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The correct Answer is:
(a,b,c)
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