Adaptive Practice
Probability
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Easy
A bag contains 5 red balls and 3 green balls. One ball is drawn at random. What is the probability of drawing a red ball?
Easy
Two coins are tossed simultaneously. What is the probability of getting exactly one head?
Easy
A die is rolled once. What is the probability of getting a number greater than 4?
Medium
A card is drawn from a well-shuffled deck of 52 cards. What is the probability of drawing a King or a Queen?
Easy
A box contains 10 bulbs, out of which 3 are defective. One bulb is drawn at random. What is the probability that the bulb is not defective?
Medium
Two dice are rolled. What is the probability that the sum of the numbers on the dice is 9?
Easy
From a group of 5 boys and 3 girls, one student is selected at random. What is the probability that the selected student is a girl?
Medium
A bag contains 4 white and 6 black balls. Two balls are drawn one after another without replacement. What is the probability that both balls are white?
Easy
A box contains 5 red, 4 green, and 3 blue balls. One ball is drawn at random. What is the probability that the ball is either red or blue?
Hard
In a class of 40 students, 25 like cricket, 15 like football, and 10 like both cricket and football. What is the probability that a student selected at random likes either cricket or football?