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A student appears for tests I, II, and I...

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

A

`1//2`

B

1

C

`3//2`

D

`3//4`

Text Solution

Verified by Experts

The correct Answer is:
B
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