Practice Probability Questions and Answers

• What is the probability that Wye will speak truth for a particular question asked?
• Axe speaks truth only when Wye does not speak truth, then what is the probability that Zed does not speak truth on a question?
• What is the probability that the cards drawn contains 1 red card, 1 purple card and 1 yellow card?
• What is the probability that the cards drawn contains exactly 2 purple card?
• Two hats are picked at random, what is the probability that one is blue and one is yellow?
• Two hats are picked at random, what is the probability that all hats are of green colour?
• If a coin is tossed 10 times then what is the probability of getting three heads?
• Out of three girls and five boys, five children are to be randomly selected for a dance programme. What is the probability that all the selected children a...
• A coin is tossed successively three times. Find the probability of getting exactly one tail or two tails?
• A card is chosen at random from a standard deck of 52 playing cards, without replacing it, a second card is chosen. What is the probability that  firs...
• Coupons numbered 1 to 10 are shuffled and one is drawn what is the probability that it bears an odd number which is also a multiple of 3?
• One five letter word is to be formed taking all letters – U, Z, M, O and Q. What is the probability that this is word formed will contain all vowels ...
• A box contains 6 blue shirts, 7 yellow shirts and 9 pink shirts. In how many ways can 4 shirts be drawn from the box, if at least one blue shirt, one yello...
• Tokens numbered 1 to 350 are in a bag. What is the probability that the Token drawn has a number which is a multiple of 6 or 7?
• A box contains 6 Brown and 8 Blue caps. There is another box which contains 8 Brown and 7 Blue caps. One cap is to drawn from either of the two boxes. What...
• What is the probability that a number selected from 1,2,3.......................68,69,70, is perfect square or a perfect cube?
• Two cards are drawn together from a pack of 52 cards. The probability that one is a club and one is a diamond?
• In a box there are 8 red, 7 blue, and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
• Two cards are drawn at random from a pack of 52 cards. What is the probability that either both are black or both are queens?
• What is the probability that four A’s come consecutively in the word ‘AMALGAMATION’
• Two schools, A and B participate in a Quiz competition. The probability of A’s winning is 3/7 and the probability of B’s winning is 3/5. What i...
• A letter is taken out at random from ‘CHACHAKE’ and another is taken out from ‘PATAKHE’. The probability that they are the same letter is  ...
• One bag contains 5 yellow hats and 4pink hats. Another bag contains 3 yellow hats and 7pink hats. If one hat is drawn from each bag, what is the probabilit...
• What is the probability that a number selected from 1,2,3.......................68,69,70, is perfect square or a perfect cube?
• A basket contains 3 pink, 4 blue and 5 yellow wools. If three wools are picked at random, what is the probability that either all are blue or either all ar...
• If the letters of the word PARAM are arranged at random, what is the probability that all vowels will come together?
• If a coin is tossed repeatedly and the head appears for the first 94 times then what is the probability that the tail appears on the 95th toss?
• A box contains 7 blue and 7 green balls. The probability of drawing three balls of the same colour is
• If a coin is tossed 10 times then what is the probability of getting three heads?
• Tokens numbered 1 to 350 are in a bag. What is the probability that the Token drawn has a number which is a multiple of 6 or 7?
• A basket contains 3 yellow, 5 purple and 3 red flowers. If 3 flowers are drawn at random, what is the probability that at least two are of same colour?
• A box contains 5 red, 6 green and 3 yellow balls. 2 balls are drawn at random. What is the probability that they are not of the same colour?
• If the letter of the word Apples is arranged at random, what is the probability that all the vowels comes together?  
• There are 5 Red caps, 3 Green caps and 2 Blue caps in a box. 4 caps are chosen at random. What is the probability of their being 2 Red and 2 Blue caps?
• Two hats are picked at random, what is the probability that one is blue and one is yellow?
• Two hats are picked at random, what is the probability that all hats are of green colour?
• One five letter word is to be formed taking all letters – U, Z, M, O and Q. What is the probability that this formed word will contain all vowels togeth...
• 5 coins are tossed together. What is the probability of getting exactly 3 tails?
• In a lottery there are 5 prizes and 50 blanks. A lottery is drawn at random. What is the probability of getting the prize? ...
• Two cards are drawn from a pack of 52 cards. The probability that 1 is Ace and 1 is Queen is?