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Question

The probability that a P and C question wil be asked in IIT JEE is 25 and probability question is asked is 47. If the probability of getting at least one of them is 23 what is the probability that questions from both the topics are asked.


A

17/105

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B

16/105

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C

1/35

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D

6/35

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Solution

The correct option is A

17/105


P(A B)=P(A)+P(B)P(A intersection B)

23= (25)+(47)x

x=17105


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