# Quiz – 1

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Question 1

Time: 00:00:00
In a throw of coin what is the probability of getting head.

1

1

1/2

1/2

2

2

3

3

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Question 2

Time: 00:00:00
Two unbiased coins are tossed. What is probability of getting at most one tail ?

3/6

3/6

3/7

3/7

3/5

3/5

3/4

3/4

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Question 3

Time: 00:00:00
Three unbiased coins are tossed, what is the probability of getting at least 2 tails ?

1/4

1/4

1/6

1/6

1/2

1/2

1/8

1/8

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Question 4

Time: 00:00:00
In a throw of dice what is the probability of getting number greater than 5

1/3

1/3

1/4

1/4

1/2

1/2

1/6

1/6

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Question 5

Time: 00:00:00
What is the probability of getting a sum 9 from two throws of dice.

1/3

1/3

1/9

1/9

2/6

2/6

3/4

3/4

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Question 6

Time: 00:00:00
Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even ?

3/4

3/4

4/5

4/5

4/7

4/7

3/7

3/7

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Question 7

Time: 00:00:00
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?

7/13

7/13

8/21

8/21

4/15

4/15

5/21

5/21

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Question 8

Time: 00:00:00
From a pack of 52 cards, 1 card is drawn at random. Find the probability of a face card drawn.

3/13

3/13

4/14

4/14

5/16

5/16

7/14

7/14

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Question 9

Time: 00:00:00
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

7/19

7/19

2/14

2/14

3/15

3/15

4/17

4/17

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Question 10

Time: 00:00:00
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

25%

25%

35%

35%

45%

45%

55%

55%

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