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Question - 1

PROBABILITY :

These questions are based on the following data.

Two 6 faced dice are thrown together.  The probability that

The two show the same number on them is _____

  • 1/216
  • 1/6
  • 5/9
  • 5/12
  • 7/12
Solutions
Question - 2

PROBABILITY :

These questions are based on the following data.

Two 6 faced dice are thrown together.  The probability that

The two dice should not show the same number on them is _________.

  • 7/12
  • 5/6
  • 1/36
  • 5/12
  • 8/9
Solutions
Question - 3

PROBABILITY :

These questions are based on the following data.

Two 6 faced dice are thrown together.  The probability that

Both should show even number on them is _________.

  • 5/9
  • 1/12
  • 1/36
  • 7/12
  • 4/9
Solutions
Question - 4

PROBABILITY :

These questions are based on the following data.

A bag contains 3 white balls, 4 black, 6 brown balls and 2 orange balls.

If four balls are picked at random, what is the probability that none is white?

  • 17/91
  • 33/91
  • 51/91
  • 65/91
  • None of these
Solutions
Question - 5

PROBABILITY :

These questions are based on the following data.

A bag contains 3 white balls, 4 black, 6 brown balls and 2 orange balls.

If three balls are picked at random, what is the probability that they are all white?

  • 1/455
  • 2/455
  • 1/91
  • 4/455
  • None of these
Solutions
Question - 6

PROBABILITY :

These questions are based on the following data.

A bag contains 3 white balls, 4 black, 6 brown balls and 2 orange balls.

If two balls are picked at random, what is the probability that they are either white or orange ?

  • 3/22
  • 4/21
  • 2/21
  • 1/14
  • None of these
Solutions
Question - 7

PROBABILITY :

These questions are based on the following data.

A bag contains 3 white balls, 4 black, 6 brown balls and 2 orange balls.

If two balls are drawn at random, what is the probability that at least one is brown?

  • 23/35
  • 29/35
  • 47/70
  • 43/70
  • None of these
Solutions
Question - 8

PROBABILITY :

These questions are based on the following data.

A bag contains 3 white balls, 4 black, 6 brown balls and 2 orange balls.

If three balls are drawn what is the probability that one is orange and two are black?

  • 4/9
  • 5/9
  • 7/9
  • 8/9
  • 1/3
Solutions
Question - 9

PROBABILITY :

A box contains six black marbles and five orange marbles. Two marbles are picked at random from the box. What is the probability that they both are different colour?

  • 4/9
  • 6/11
  • 7/9
  • 8/9
  • 1/3
Solutions
Question - 10

PROBABILITY :

Out of 30 consecutive numbers, 5 are chosen at random.  The probability that all are odds or primes is ________.

  • 10/17
  • 10/19
  • 46/105
  • 11/15
  • Cannot be determined
Solutions
Question - 11

PROBABILITY :

What is the probability that a leap year has 53 Mondays and 52 Tuesdays?

  • 0
  • 1/7
  • 2/7
  • 5/7
  • 6/7
Solutions
Question - 12

PROBABILITY :

11 registers are placed at random in a shelf. The probability that a pair of registers will always be together is ________.

  • 1/10
  • 9/10
  • 2/11
  • 3/10
  • 1/2
Solutions
Question - 13

PROBABILITY :

The probability that A speaks truth is 7/9 and that of B speaking truth is 5/8. What is the probability that they agree in stating the same fact?

  • 41/72
  • 12/35
  • 17/35
  • 19/35
  • None of these
Solutions
Question - 14

PROBABILITY :

Out of 7 persons working on a project, 3 are post graduates.  If 2 are selected, what is the probability that there is at least one post graduate among them?

  • 1/6
  • 5/8
  • 3/8
  • 5/7
  • 7/8
Solutions
Question - 15

PROBABILITY :

From a pack of cards two cards are drawn at same time. The probability that the two cards are of same colour is?

  • 14/51
  • 15/51
  • 16/51
  • 17/51
  • None of these
Solutions
Question - 16

PROBABILITY :

In a pub there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at least two couples?

  • 5/21
  • 5/18
  • 9/16
  • 16/27
  • None of these
Solutions
Question - 17

PROBABILITY :

A card is drawn from a well shuffled pack of cards, the probability of drawing a diamond or a queen is ?

  • 17/52
  • 15/52
  • 4/13
  • 9/26
  • None of these
Solutions
Question - 18

PROBABILITY :

If three coins are tossed, the probability of getting two heads and one tail is?

  • 5/8
  • 3/8
  • 1/4
  • 3/4
  • None of these
Solutions
Question - 19

PROBABILITY :

If five person sit in a row, then the probability that two persons always sit together is__

  • 2/5
  • 3/5
  • 4/5
  • 1/5
  • None of these
Solutions
Question - 20

PROBABILITY :

A coin tossed thrice. What is the probability that there is at least one tail ?

  • 1/8
  • 7/8
  • 3/8
  • 5/8
  • None of these
Solutions
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