Adaptive Practice
Probability
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Question 1 of 8
⏱ 0:30
Easy
A bag contains 3 red balls, 2 green balls, and 5 blue balls. If you pick one ball at random, what is the probability of picking a green ball?
Easy
In a cricket match, a bowler can bowl a wide ball with a probability of 1/20. What is the probability that the bowler does NOT bowl a wide ball?
Easy
A spinner is divided into 4 equal parts colored red, yellow, green, and blue. What is the probability that the spinner will land on either red or blue?
Easy
A die is rolled once. What is the probability of getting a number greater than 4?
Medium
In a box, there are 7 mangoes and 3 apples. Two fruits are picked at random without replacement. What is the probability that both are mangoes?
Medium
A bag contains 5 red, 4 blue, and 6 green marbles. If one marble is picked at random, what is the probability it is neither red nor green?
Hard
A card is drawn from a standard deck of 52 cards. What is the probability of drawing a King or a Heart?
Hard
A box has 3 white, 4 black, and 5 red balls. Two balls are drawn one after another with replacement. What is the probability that both balls are black?