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Arithmetic Aptitude :: Probability

  1.  Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even ?

  2. A.

    1/2

    B.

    3/4

    C.

    5/7

    D.

    11/13


  3.  In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither blue nor green?

  4. A.

    2/3

    B.

    3/7

    C.

    8/21

    D.

    9/22


  5.  A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is

  6. A.

    1/13

    B.

    1/26

    C.

    1/52

    D.

    None of these


  7.  From a pack of 52 cards, 1 card is drawn at random. Find the probability of a face card drawn.

  8. A.

    1/4

    B.

    1/52

    C.

    4/13

    D.

    None of these


  9.  A box contains 20 electric bulbs, out of which 4 are defective. Two bulbs are chosen at random from this box. The probability that at least one of these is defective is

  10. A.

    4/19

    B.

    5/19

    C.

    6/19

    D.

    7/19


  11.  A speaks truth in 75% of cases and B in 80% of cases. In what percentage of cases are they likely to contradict each other, narrating the same incident

  12. A.

    15%

    B.

    25%

    C.

    35%

    D.

    45%


  13.  From a pack of 52 cards, two cards are drawn together, what is the probability that both the cards are kings

  14. A.

    1/13

    B.

    1/57

    C.

    1/119

    D.

    1/221


  15.  A box contains 5 green, 4 yellow and 3 white balls. Three balls are drawn at random. What is the probability that they are not of same colour.

  16. A.

    3/44

    B.

    31/44

    C.

    41/44

    D.

    61/44


  17.  Bag contain 10 back and 20 white balls, One ball is drawn at random. What is the probability that ball is white

  18. A.

    1/3

    B.

    2/3

    C.

    1

    D.

    4/3


  19.  There is a pack of 52 cards and Rohan draws two cards together, what is the probability that one is spade and one is heart ?

  20. A.

    3/102

    B.

    13/102

    C.

    23/102

    D.

    33/102