Question
span >In a lottery, there are 12 prizes and 33 blanks. A lottery is drawn at random. What is the probability of getting a prize?
Solution
P (getting a prize) = 12/(12 + 33) = 12/45 = 4/15.
More Probability Questions
- A card is drawn randomly from a collection of total face cards. What is the probability that the drawn card is a Queen?
- A bowl contains 9 blue balls, 7 white, and 5 black balls. If 2 balls are drawn in one go, then the probability of exactly one ball being blue is:
- A letter is taken out at random from ‘ROORKEE’ and another is taken out from ‘BOOKKEEPER’. The probability that they are the same letter is
- A die is biased in such a way that if thrown once, then the probability of getting an odd number on the die is (1/5) more than the probability of getting a...
- A box contains 6 red balls, 5 green balls, and 4 blue balls. Two balls are drawn at random. What is the probability that one ball is red and the other is b...
- Three persons i.e. ‘D’, ‘E’ and ‘F’, are given the same puzzle to solve. The probability that ‘D’, ‘E’ and ‘F’ will solve the puzzle is (5/8), (2/3) and (3...
- A box contains 4 red, 5 blue and 3 green balls. Two balls are drawn at random without replacement. What is the probability that both balls are of the same ...
- An instructor has a question bank consisting of 200 easy True / False questions, 300 difficult True / False questions, 400 easy multiple-choice questions a...
- A fair coin is tossed 3 times. ‘A’ wins if exactly one tail appears. Otherwise, ‘B’ wins. What is the probability that ‘A’ wins?
- Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that al...
