Practice Probability Questions and Answers

• Two cards are drawn from a pack of 52 cards. The probability that 1 is Ace and 1 is Queen is?
• In a box there are 12 orange, 5 white, and 7 blue balls. One ball is picked up randomly. What is the probability that it is neither white nor blue?...
• A bag contains 7 red gems, 8 yellow gems  and 5 green gems . 3 gems  are drawn randomly. What is the probability that the gem...
• A bag contains 5 red bottles, 6 yellow bottles  and 8 green bottles . 3 bottles  are drawn randomly. What is the probability that ...
• A bag contains 10 red books, 7 yellow books  and 7 green books . 3 books  are drawn randomly. What is the probability that the&nbs...
• A bag contains 5 red books, 7 yellow books  and 7 green books . 3 books  are drawn randomly. What is the probability that the ...
• What will be the probability of choosing one red and one green ball from a basket containing 4 red and 5 green balls if two balls are drawn randomly?
• A bag contains 6 balls of which 3 are red and 3 are black. They are drawn successively without replacement. What is the probability that colors are alterna...
• There are 4 red balls, 5 blue balls and 3 green balls in a jar. 2 balls are drawn at random. Find the probability that both balls are either green or red.
• 22 defective pens are accidentally mixed with 136 good ones. It is not possible to just look at a pen and tell whether or not it is defective. One pen is t...
• 24 defective pens are accidentally mixed with 120 good ones. It is not possible to just look at a pen and tell whether or not it is defective. One pen is t...
• The probability of selecting a rotten apple randomly from a heap of 900 apples is 0.18. What is the number of rotten apples in the heap? ...
• The probability of selecting a rotten apple randomly from a heap of 600 apples is 0.14. What is the number of rotten apples in the heap?
• The probability of selecting a rotten apple randomly from a heap of 250 apples is 0.20. What is the number of rotten apples in the heap? ...
• The probability of selecting a rotten apple randomly from a heap of 1050 apples is 0.36. What is the number of rotten apples in the heap?
• The probability of selecting a rotten apple randomly from a heap of 150 apples is 0.28. What is the number of rotten apples in the heap?
• The probability of selecting a rotten apple randomly from a heap of 100 apples is 0.20. What is the number of rotten apples in the heap? ...
• A bag contains 15 white and some black balls. If the probability of drawing a black ball from the bag is thrice that of drawing a white ball, find the numb...
• A bag contains 12 white and some black balls. If the probability of drawing a black ball from the bag is thrice that of drawing a white ball, find the numb...
• A bag contains 13 white and some black balls. If the probability of drawing a black ball from the bag is twice that of drawing a white ball, find the numbe...
• A bag contains 20 white and some black balls. If the probability of drawing a black ball from the bag is 2.5 times that of drawing a white ball, find the n...
• A bag contains 20 white and some black balls. If the probability of drawing a black ball from the bag is 6.25 times that of drawing a white ball, find the ...
• A bag contains 35 white and some black balls. If the probability of drawing a black ball from the bag is 1.8 times that of drawing a white ball, find the n...
• A bag contains 20 white and some black balls. If the probability of drawing a black ball from the bag is 1.3 times that of drawing a white ball, find the n...
• A bag contains 24 white and some black balls. If the probability of drawing a black ball from the bag is 1.5 times that of drawing a white ball, find the n...
• A bag contains 8 white and some black balls. If the probability of drawing a black ball from the bag is twice that of drawing a white ball, find the number...
• A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white? ...
• A bag contains 3 black and 9 white balls. One ball is drawn at random. What is the probability that the ball drawn is white? ...
• A bag contains 9 black and 10 white balls. One ball is drawn at random. What is the probability that the ball drawn is white? ...
• A bag contains 8 black and 10 white balls. One ball is drawn at random. What is the probability that the ball drawn is white? ...
• A bag contains 10 black and 12 white balls. One ball is drawn at random. What is the probability that the ball drawn is white? ...
• A bag contains 12 black and 14 white balls. One ball is drawn at random. What is the probability that the ball drawn is white? ...
• A bag contains 14 black and 16 white balls. One ball is drawn at random. What is the probability that the ball drawn is white? ...
• A bag contains 16 black and 18 white balls. One ball is drawn at random. What is the probability that the ball drawn is white? ...
• A bag contains 18 black and 20 white balls. One ball is drawn at random. What is the probability that the ball drawn is white? ...
• A bag contains 20 black and 22 white balls. One ball is drawn at random. What is the probability that the ball drawn is white? ...
• Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that al...
• In a lottery, there are 4 prizes and 20 blanks. A lottery is drawn at random. What is the probability of getting a prize?
• In a lottery, there are 8 prizes and 20 blanks. A lottery is drawn at random. What is the probability of getting a prize? ...
• In a lottery, there are 11 prizes and 22 blanks. A lottery is drawn at random. What is the probability of getting a prize? ...