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Deloitte Probability Questions and Answers Quiz-1

Question 1

Time: 00:00:00
The probability of getting heads in both trials when a balanced coin is tossed twice will be?

1/4

1/4

1/2

1/2

1

1

3/4

3/4

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Question 2

Time: 00:00:00
A card is drawn from a well-shuffled pack of cards. The probability of getting a queen of club or king of the heart is?

1/52

1/52

1/26

1/26

1/13

1/13

None of these

None of these

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Question 3

Time: 00:00:00
If the probability that A will live 15 yr is 7/8 and that B will live 15 yr is 9/10, then what is the probability that both will live after 15 yr ?

1/20

1/20

63/80

63/80

1/5

1/5

None of these

None of these

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Question 4

Time: 00:00:00
The probability of drawing a red card from a deck of playing cards is

2/18

2/18

1/13

1/13

1/4

1/4

1/2

1/2

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Question 5

Time: 00:00:00
When two dice are rolled, what is the probability that the sum of the numbers appeared on them is 11?

5/16

5/16

2/13

2/13

3/26

3/26

1/18

1/18

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Question 6

Time: 00:00:00
A bag contains 8 red and 5 white balls. 2 balls are drawn at random. What is the probability that both are white ?

3/39

3/39

5/39

5/39

1/39

1/39

4/39

4/39

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Question 7

Time: 00:00:00
Three unbiased coins are tossed. What is the probability of getting at most 2 heads ?

1/4

1/4

3/8

3/8

7/8

7/8

1/2

1/2

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Question 8

Time: 00:00:00
A brother and sister appear for an interview against two vacant posts in an office. The probability of the brother's selection is 1/5th and that of the sister's selections is 1/3rd. What is the probability that one of them is selected?

1/5

1/5

2/5

2/5

1/3

1/3

2/3

2/3

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Question 9

Time: 00:00:00
Four whole number taken at random are multiplied together. The chance that the last digit of the product is 1, 3, 7, or 9 is ?

14/625

14/625

16/625

16/625

15/625

15/625

12/625

12/625

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Question 10

Time: 00:00:00
The probability that a card is drawn from a pack of 52 cards will form a pack of 52 cards will be diamond or king being in?

4/13

4/13

1/21

1/21

8/12

8/12

4/25

4/25

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