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Arithmetic Aptitude :: Probability

  1.  The probability of occurrence of a multiple of 2 on a dice and multiple of 3 on the other dice . If both are thrown together is ?

  2. A.

    7/26

    B.

    1/3

    C.

    71/36

    D.

    1/4

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  3.  Two number are selected randomly from the set S = {1, 2, 3, 4, 5, 6} without replacement one by one. The probability that minimum of the number is less than 4 is ?

  4. A.

    1/15

    B.

    14/15

    C.

    1/5

    D.

    4/5

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  5.  A bag contains 5 blue and 4 black balls. Three balls are drawn at random. What is the probability that 2 are blue and 1 is black ?

  6. A.

    1/3

    B.

    2/5

    C.

    1/6

    D.

    None of these

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  7.  A six - faced dice is so biased that is twice as likely to show an even number as an odd number when throw. It is thrown twice. The probability that the sum of two number thrown is even is ?

  8. A.

    1/12

    B.

    1/6

    C.

    1/3

    D.

    5/9

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  9.  The probability of occurrence of an event A is 5/9 . The probability of non-occurrence of the event B is 5/11. The probability that at least one of them will occur ?

  10. A.

    6/11

    B.

    5/9

    C.

    4/9

    D.

    0.8

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  11.  When two dice are thrown, the probability that the difference of the number on the dice is 2 or 3 is ?

  12. A.

    7/18

    B.

    3/11

    C.

    5/18

    D.

    1/2

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  13.  From a set of 17 cards numbered 1, 2, 3 ....... 17 one is drawn at random. The probability that the number is divisible by 3 or 7 is ?

  14. A.

    2/17

    B.

    1/7

    C.

    7/17

    D.

    10/ 17

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  15.  A card is drawn at random from a pack of 100 cards numbered 1 to 100. The probability drawing a number which is a square is ?

  16. A.

    1/5

    B.

    2/5

    C.

    1/10

    D.

    None of these

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  17.  In suffling a pack of card 3 are accidentally dropped then the chance that missing card should be of different suit is ?

  18. A.

    169/425

    B.

    261/425

    C.

    104/425

    D.

    None of these

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  19.  The probability that a card drawn from a pack of 52 cards will from a pack of 52 cards will be diamond or king being to ?

  20. A.

    4/52

    B.

    4/13

    C.

    1/52

    D.

    2/13

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