Advertisements
Advertisements
Question
A bag contains 100 identical marble stones which are numbered 1 to 100. If one stone is drawn at random from the bag, find the probability that it bears a number divisible by 4.
Solution
Total number of possible outcomes = 100
Numbers which are divisible by 4 = 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100
Number of favorable outcomes = 25
P(number divisible by 4) =
APPEARS IN
RELATED QUESTIONS
Which of the following cannot be the probability of an event?
Tickets numbered from 1 to 20 are mixed up and a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 7?
A bag contains 4 red, 5 black and 6 white balls. A ball is drawn from the bag at random. Find the probability that the ball drawn is Not black
Two customers are visiting a particular shop in the same week (Monday to Saturday). Each is equally likely to visit the shop on any one day as on another. What is the probability that both will visit the shop on different days?
Two dice (each bearing numbers 1 to 6) are rolled together. Find the probability that the sum of the numbers on the upper-most faces of two dice is 7, 8 or 9.
Two dice are thrown simultaneously. What is the probability that:
- 4 will not come up either time?
- 4 will come up at least once?
Cards marked with numbers 1, 2, 3 ......... 20 are well shuffled and a card is drawn at random. What is the probability that the number on the card is a perfect square?
A letter is chosen at random from the letters of the word ASSOCIATION. Find the probability that the chosen letter is a vowel.
Namita tossed a coin once. What is the probability of getting Head?
Two fair dice are rolled simultaneously. The probability that 5 will come up at least once is ______.
