Exercise :: Probability  General Questions
 Probability  Important Formulas
 Probability  General Questions
11.  A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is: 

Answer: Option C Explanation: Here, n(S) = 52. Let E = event of getting a queen of club or a king of heart. Then, n(E) = 2.

12.  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: 

Answer: Option C Explanation: Let S be the sample space.
Let E = event of getting all the 3 red balls.

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

Answer: Option D Explanation: Let S be the sample space.
Let E = event of getting 1 spade and 1 heart.

14.  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)? 

Answer: Option B Explanation: Clearly, there are 52 cards, out of which there are 12 face cards.

15.  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? 

Answer: Option B Explanation: Let number of balls = (6 + 8) = 14. Number of white balls = 8.
