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Probability

Probability - Important Points


41. A standard deck of 52 cards is shuffled thoroughly. What is the probability of drawing a heart card?

A. 1/4

B. 1/13

C. 3/13

D. 1/52

Discuss Work Space

Answer: option c

Explanation:

There are 13 heart cards (hearts suit) out of a total of 52 cards in the deck. Therefore, the probability of drawing a heart card is 13/52, which simplifies to 1/4 or 3/13.

42. A bag contains 5 red cards, 3 black cards, and 4 blue cards. If one card is drawn randomly, what is the probability of getting a red card?

A. 1/12

B. 5/12

C. 3/12

D. 5/9

Discuss Work Space

Answer: option b

Explanation:

There are 5 red cards out of a total of 12 cards in the bag. Therefore, the probability of drawing a red card is 5/12.

43. A standard deck of 52 cards is shuffled thoroughly. What is the probability of drawing an ace or a king?

A. 1/13

B. 1/26

C. 1/6

D. 1/4

Discuss Work Space

Answer: option c

Explanation:

There are 4 aces and 4 kings in the deck, making a total of 8 cards. Therefore, the probability of drawing an ace or a king is 8/52, which simplifies to 1/6.

44. A bag contains 7 red cards and 5 black cards. Two cards are drawn at random with replacement. What is the probability of getting two red cards?

A. 1/6

B. 1/12

C. 1/24

D. 1/36

Discuss Work Space

Answer: option d

Explanation:

The probability of drawing a red card on each draw is 7/12. Since the cards are drawn with replacement, the probabilities are independent. To find the probability of getting two red cards, we multiply the probabilities: (7/12) * (7/12) = 49/144, which simplifies to 1/36.

45. A standard deck of 52 cards is shuffled thoroughly. If three cards are drawn without replacement, what is the probability of getting three aces?

A. 1/5525

B. 1/4165

C. 1/22100

D. 1/595

Discuss Work Space

Answer: option a

Explanation:

The probability of drawing an ace on the first draw is 4/52. After one ace has been drawn, there are 3 aces left out of 51 cards. The probability of drawing an ace on the second draw is 3/51. After two aces have been drawn, there are 2 aces left out of 50 cards. The probability of drawing an ace on the third draw is 2/50. To find the combined probability, we multiply the probabilities: (4/52) * (3/51) * (2/50) = 24/132600, which simplifies to 1/5525.


Probability Questions and Answers FAQ

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Why do I need to learn Probability Questions with Answers in Quantitative Aptitude?

Probability is an important topic of Quantitative Aptitude. MCQ type Questions with Answers of Probability are required to build your Quantitative Aptitude skills which is a prerequisite for your Career development.

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The Quantitative Aptitude MCQ type Questions with Answers based on "Probability" will help you improve your skills in order to face the interviews, crack Campus recruitment tests and various other competitive examination such as CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc. with full confidence.

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