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Two persons A and B agree to meet at a place between 11 to 12 noon. The first one to arrive waits for 20 minutes and then leave. if the time of their arrival be independent and at random, then the probabity that A and B meet is:

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ARIHANT MATHS-PROBABILITY-Exercise (Questions Asked In Previous 13 Years Exam)
  1. Two persons A and B agree to meet at a place between 11 to 12 noon. Th...

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  2. A person goes to office either by car, scooter, bus or train probabili...

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  3. A six faced fair die is thrown until 1 comes. Then , the probability t...

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  4. Let A and B be two events such that Poverline((AcupB))=(1)/(6),P(AcapB...

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  5. Three houses are available in a locality. Three persons apply for the ...

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  6. A randam variable X has Poisson's distribution with mean 2. Then , P(X...

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  7. There are n urns each containing (n+1) balls such that ith urn contain...

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  8. In a telephone enquiry system, the number of phone calls regarding rel...

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  9. One Indian and four American men and their wives are to be seated rand...

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  10. Let H1, H2,..., Hn be mutually exclusive events with P (Hi) > 0, i = ...

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  11. Let E^c denote the complement of an event E. Let E,F,G be pairwise ind...

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  12. A pair of fair dice is thrown independently three times. The probab...

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  13. Two aeroplanes I and II bomb a target in succession. The probabilit...

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  14. An experiment has 10 equally likely outcomes. Let A and B be two non-e...

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  15. Consider the system of equations ax + by = 0; cx + dy = 0, where a, b,...

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  16. A die is thrown. Let A be the event that the number obtained is gre...

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  17. It is given that the events A and B are such that P(A)=(1)/(4),P((A)/(...

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  18. A fair die is tossed repeatedly until a six is obtained Let X denote t...

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  19. A fair die is tossed repeated until a six is obtained. Let X denote th...

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  20. A fair die is tossed repeatedly until a six obtained. Let X denote the...

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  21. In a binomial distribution B(n , p=1/4) , if the probability of at lea...

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