Dell Probability Questions

June 23, 2019

Question 1

Time: 00:00:00
A bag contains 6 white and 4 black balls .2 balls are drawn at random. 

Find the probability that they are of same colour.

1/2

1/2

7/5

7/5

8/15

8/15

1/9

1/9

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Question 2

Time: 00:00:00
Tickets numbered 1 to 20 are mixed up and then a ticket is 

drawn at random. What is the probability that the ticket 

drawn has a number which is a multiple of 3 or 5?

1/2

1/2

3/5

3/5

9/20

9/20

8/15

8/15

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Question 3

Time: 00:00:00
Two dice are tossed. The probability that the total score is 

a prime number is:

5/2

5/2

1/6

1/6

1/2

1/2

7/9

7/9

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Question 4

Time: 00:00:00
A bag contains 4 white, 5 red and 6 blue balls. Three balls 

are drawn at random from the bag. The probability that all 

of them are red, is:

2/91

2/91

1/22

1/22

3/22

3/22

2/77

2/77

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Question 5

Time: 00:00:00
In a lottery, there are 10 prizes and 25 blanks. A lottery is 

drawn at random. What is the probability of getting a prize?

2/7

2/7

5/7

5/7

1/5

1/5

1/2

1/2

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Question 6

Time: 00:00:00
What is the probability of getting 53 Mondays in a leap year?

1/7

1/7

3/7

3/7

2/7

2/7

1

1

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Question 7

Time: 00:00:00
One card is drawn at random from a pack of 52 cards. 

What is the probability that the card drawn is a face card 

(Jack, Queen and King only)?

3/13

3/13

1/13

1/13

3/52

3/52

9/52

9/52

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Question 8

Time: 00:00:00
Two cards are drawn together from a pack of 52 cards. 

The probability that one is a spade and one is a heart, is:

3/20

3/20

29/34

29/34

47/100

47/100

13/102

13/102

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Question 9

Time: 00:00:00


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?

3/7

3/7

4/7

4/7

1/8

1/8

3/4

3/4

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Question 10

Time: 00:00:00


If two letters are taken at random from the word HOME, 

what is the probability that none of the letters would be vowels?

1/6

1/6

1/2

1/2

1/3

1/3

1/4

1/4

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["0","40","60","80","100"]
["Need more practice! \n","Keep trying! \n","Not bad! \n","Good work! \n","Perfect! \n"]
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