Probability on Arithmetic Aptitude related Questions and Answers

Question 1 : 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. (1/2)
2. (2/5)
3. (8/15)
4. (9/20)
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Question 2 : A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?


1. (10/21)
2. (11/21)
3. (2/7)
4. (5/7)
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Question 3 : What is the probability of getting a sum 9 from two throws of a dice?


1. (1/6)
2. (1/8)
3. (1/9)
4. (1/12)
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Question 4 : Three unbiased coins are tossed. What is the probability of getting at most two heads?


1. (3/4)
2. (1/4)
3. (3/8)
4. (7/8)
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Question 5 : 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?


1. (3/4)
2. (4/7)
3. (1/8)
4. (3/7)
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Question 6 : 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)?


1. (1/13)
2. (3/13)
3. (1/4)
4. (9/52)
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Question 7 : Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is:


1. (3/20)
2. (29/34)
3. (47/100)
4. (13/102)
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Question 8 : 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:


1. (1/22)
2. (3/22)
3. (2/91)
4. (2/77)
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