Practice Probability Questions and Answers

• A bag contains 6 Green and 8 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?
• A bag contains 9 Green and 10 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?
• A bag contains 8 Green and 10 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?
• A bag contains 14 Green and 16 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?
• In a lottery, there are 6 prizes and 30 blanks. A lottery is drawn at random. What is the probability of getting a prize?
• Out of 6 white marbles, 3 blue marbles, in how many ways we select one or more marbles?
• There are a total of 42 students (boys and girls) in a class. The probability of picking at least one boy when two students are picked from the class is (1...
• In a bag there are a total of 60 fruits. The average of the number of apples and mangoes in the bag is equal to the number of bananas in the bag. The ratio...
• If n(A) = 25, n(B) = 40 and n(A ∪ B) = 50, then n(A ∩ B) equals
• Two players, A and B, play a tennis match. It is known that the probability of A winning the match is 0.65. What is the probability of B winning the match?...
• 40 pens are there in a box where 22 are red pens, ‘p’ are blue pens and remaining are black pens. If a pen is picked, the probability of getting blue p...
• 48 pens are there in a box where 22 are red pens, ‘p’ are blue pens and remaining are black pens. If a pen is picked, the probability of getting blue p...
• 34 pens are there in a box where 10 are red pens, ‘p’ are blue pens and remaining are black pens. If a pen is picked, the probability of getting blue p...
• 24 pens are there in a box where 10 are red pens, ‘p’ are blue pens and remaining are black pens. If a pen is picked, the probability of getting blue p...
• A bag contains 5 black balls,“a” white balls and “b” purple balls. If one ball taken out from the bag, then probability of being it white is 2/7, w...
• In a bag contains 4 one rupees coins and 3 five rupees coin. If two coins are drawn at random, find the probability of getting a one rupee coin and a five ...
• A bag contains 7 (one rupee coins), 4 (two rupee coin) and 5 (ten rupee coin). Find the probability that 3 coins drawn at random are either (two rupee coin...
• In a bag, there are three different colour balls namely red, yellow and white. The sum of the number of yellow and red balls in the bag is equal to the num...
• A bag contains 4 red bands, 4 green bands and 6 blue bands. Two bands are drawn randomly. What is the probability that at most one band is red?
• In a bag, there are four different colour of balls namely Red, Blue, Green and Yellow. The ratio between the number of blue and yellow balls in the bag is ...
• Determine the number of ways to form a Kabaddi team consisting of six players from a group of 7 male players and 5 female players. Specifically, calculate ...
• A card is drawn randomly from a collection of total face cards. What is the probability that the drawn card is a jack?
• In a purse, there are 3 two-rupee coins and 4 five-rupee coins. If you randomly select 4 coins from the purse, what is the probability that you will choose...
• In a game, there are 12 cards, 5 of which are red and the rest are blue. If 2 cards are drawn at random, the question is to determine the probability that ...
• Three cards are drawn one after another with replacements from a pack of cards. What is the probability of getting the first card a Jack, the second card a...
• Three persons. A, B and C. are given the same puzzle to solve. The probability that A, B and C will solve the puzzle is. 3/5., 2/3., and 1/4respectively. F...
• A card is drawn randomly from a collection of total face cards. What is the probability that the drawn card is a Queen?
• R goes to the gym either by cycle, car, or walking. On a specific day, the probability of him going by car is 0.3 less than the probability of walking and ...
• There are 30 cars standing in a parking lot which consist of silver, grey and white cars. The number of grey and white cars are equal, and the number of si...
• A contains X green Balls, '7 Red Balls, and 5 Yellow Balls. The probability to pick Green Ball at random is 3/5. Another Bag B contains ‘6 green Balls, �...
• 12 Marbles and 12 balls are kept in a box. If 4 items are chosen at random, Find the probability that 2 is a marble and another 2 is ball
• In an examination, there are three sections namely Reasoning, Math, and English. The reasoning part contains 7 questions. There are 4 questions in the math...
• A box contains only three colors of balls- red, green, and blue. What is the minimum number of balls that should be picked from the box to ensure that at l...
• Atul and Bhuvan play a game where each is asked to select a number from 1 to 9. If the two numbers same, both win a prize. The probability that they will n...
• There are three boxes ‘A’, ‘B’ and ‘C’. Box ‘A’ contains 6 black and 12 white cubes, box ‘B’ contains 6black, and 8 white cubes and box...
•  A box contains 12 yellow marbles, ‘x’ blue marbles and 12 white marbles. A box contains 5 yellow marbles, 2 blue marbles and 3 white marbles. The pro...
•  A bag contains 4 white balls, 5pink balls and 3 black balls. 2 balls are drawn randomly. What is the probability that there are no black balls?
• A jar contains 54 marbles each of which is blue green or white. The probability of selecting a blue marble at random from the jar is 1/3 and the probabilit...
• A bag contains cards which are numbered from 2 to 90. A card is drawn at random from the bag. Find the probability that the card number is a perfect square...
• Find the probability that a number selected at random from first hundred number is a multiple of 3 or 5?