Aptitude - Probability

Dear candidate, who are interested in Government jobs/ Private jobs must get the basic knowledge in Aptitude. Because, selection process for jobs in both sectors consist of Aptitude test. They will conduct the test to check the professional skills of candidates. Aptitude questions from Problems on Trains, Races and Games, Problems on Numbers & other topics are already uploaded at our site. Kindly use this section to practice the given below objective type multiple choice questions. This is an great opportunity for candidates who are preparing for competitive exams kindly use this GK Quiz.

1. A box contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?

2. One card is pick up 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. In a pack of 52 cards. Calculate the probability of getting a queen of club or a king of heart is.

4. Two dice are throwed. What is the probability that the total score is a prime number ?

5. In a lottery, there are 10 prizes and 25 blanks. A lottery is worn at random. What is the probability of getting a prize?

6. wo dice are thrown at the same time. Calculate the probability of getting two numbers whose product is even?

7. Three unbiased coins are tossed. Find the probability of getting at most two heads?

8. What is the probability of obtaining a sum 9 from two throws of a dice?

9. A box with 8 red, 7 blue and 6 green balls. One ball is take up randomly. What is the probability that it is neither red nor green?

10. Tokens that numbered 1 to 20 are mixed up. Then a ticket is drawn at random. Calculate the probability that the ticket drawn has a number which is a multiple of 3 or 5?

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