Adaptive Practice
Probability
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Easy
A fair six-sided die is rolled once. What is the probability of getting a number greater than 4?
Easy
A bag contains 5 red balls and 3 green balls. One ball is drawn at random. What is the probability that the ball drawn is green?
Easy
A coin is tossed twice. What is the probability of getting exactly one head?
Medium
A card is drawn from a well-shuffled deck of 52 cards. What is the probability of drawing a King or a Queen?
Medium
Two dice are rolled together. What is the probability that the sum of the numbers on the dice is 9?
Easy
A box contains 10 bulbs, 3 of which are defective. If one bulb is selected at random, what is the probability that it is not defective?
Hard
A bag contains 4 white and 6 black balls. Two balls are drawn one after the other without replacement. What is the probability that both balls are white?
Hard
In a class of 40 students, 25 like cricket and 18 like football. If every student likes at least one of the two games, how many students like both?
Medium
A spinner is divided into 5 equal parts numbered 1 to 5. What is the probability of spinning a number less than 3 or an even number?
Hard
A box contains 15 balls numbered 1 to 15. One ball is drawn at random. What is the probability that the number on the ball is a multiple of 3 or 5?