Practice mode / Probability A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is: A Option A: 1/22 B Option B: 3/22 C Option C: 2/91 D Option D: 2/77 Correct answer C. 2/91 Show answer Report a problem How we write and check questions
Question 01 / Probability A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is: A Option A: 1/13 B Option B: 2/13 C Option C: 1/26 D Option D: 1/52 Correct answer C. 1/26 Show answer Open question
Question 02 / Probability Two dice are tossed. The probability that the total score is a prime number is: A Option A: 1/6 B Option B: 5/12 C Option C: 1/2 D Option D: 7/9 Correct answer B. 5/12 Show answer Open question
Question 03 / Probability From a pack of 52 cards, two cards are drawn together at random. What is the probability of both the cards being kings? A Option A: 1/15 B Option B: 25/57 C Option C: 35/256 D Option D: 1/221 Correct answer D. 1/221 Show answer Open question
Question 04 / Probability In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize? A Option A: 1/10 B Option B: 2/5 C Option C: 2/7 D Option D: 5/7 Correct answer C. 2/7 Show answer Open question
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