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Arithmetic Aptitude :: Probability

  1.  Two dice are thrown together .What is the probability that the sum of the number on the two faces is divided by 4 or 6.

  2. A.

    7/18

    B.

    14/35

    C.

    8/18

    D.

    7/35


  3.  In a class, 30% of the students offered English, 20% offered Hindi and 10% offered both. If a student is selected at random, what is the probability that he. has offered English or Hindi ?

  4. A.

    1/2

    B.

    3/4

    C.

    4/5

    D.

    2/5


  5.  In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability that 1 girl and 2 boys are selected, is:

  6. A.

    21/46

    B.

    1/5

    C.

    3/25

    D.

    1/50


  7.  What is the probability of getting 53 Mondays in a leap year?

  8. A.

    1/7

    B.

    3/7

    C.

    2/7

    D.

    1


  9.  If two letters are taken at random from the word HOME, what is the probability that none of the letters would be vowels?

  10. A.

    1/6

    B.

    1/2

    C.

    1/3

    D.

    1/4


  11.  Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is:

  12. A.

    3/20

    B.

    29/34

    C.

    47/100

    D.

    13/102


  13.  Four dice are thrown simultaneously. Find the probability that all of them show the same face.

  14. A.

    1/216

    B.

    1/36

    C.

    2/216

    D.

    4/216


  15.  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

  16. A.

    30/100

    B.

    35/100

    C.

    45/100

    D.

    45/100


  17.  A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?

  18. A.

    3/7

    B.

    4/7

    C.

    1/8

    D.

    3/4


  19.  A bag contains 50 tickets numbered 1,2,3,4......50 of which five are drawn at random and arranged in ascending order of magnitude.Find the probability that third drawn ticket is equal to 30.

  20. A.

    551/15134

    B.

    1/2

    C.

    552/15379

    D.

    1/9