Arithmetic Aptitude :: Probability
- A bag contains 6 white and 4 black balls .2 balls are drawn at random. Find the probability that they are of same colour.
- Two cards are drawn at random from a pack of 52 cards.what is the probability that either both are black or both are queen?
- A man and his wife appear in an interview for two vacancies in the same post. The probability of husband's selection is (1/7) and the probability of wife's selection is (1/5). What is the probability
- A problem is given to three students whose chances of solving it are 1/2, 1/3 and 1/4 respectively. What is the probability that the problem will be solved?
- In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?
- 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?
- Two dice are tossed. The probability that the total score is a prime number is:
- 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:
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