Most viewed puzzles under tag probability

0 votes

What is the minimum number of letters that John has to send to be sure that Peter receives his letter

posted Aug 29, 2020 by Atindra Kumar Nath

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Luke has a blue ball and red balls. Every day, he wins 2 blue balls and loses 3 red ones

posted Aug 29, 2020 by Atindra Kumar Nath

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Three points are selected at random on a sphere's surface. What is the probability that they all lie in same hemisphere?

posted Jul 27, 2016 by anonymous

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A man throws three dices simultaneously..........What is the probability of getting three numbers whose product is even?

posted Oct 1, 2019 by Yogeshwar Thakur

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You’re on a game show, and you’re given the choice of three doors: Behind one door is a car; behind the others, goats...

posted Sep 19, 2016 by anonymous

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Two digits are selected at random from digits 1 through 9. If sum is even, find the probability of both numbers are odd?

posted Nov 10, 2017 by anonymous

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If you choose to answer this question at random, what are the chances you will be correct?

posted Dec 23, 2014 by Kuldeep Apte

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What is the probability of picking up an alphabet card from a 52 card deck?

posted Dec 6, 2019 by Divya Bharti

+1 vote

A bag contains 5 white, 4 red and 3 black balls. A ball is drawn, what is the probability that it is not black?

posted Apr 8, 2016 by anonymous

+1 vote

A bag contain 8 red and 5 white balls. 2 balls are drawn at random. What is the probability that both are white?

posted Nov 17, 2015 by anonymous

+3 votes

What is the probability that room number starts with 1, 2 or 3 and ends with 4, 5 or 6?

posted Nov 10, 2013 by Anuj Yadav

+1 vote

You take a test, and 60% pass the first time and 40% fail. The second time around,80% pass the test and 20% fail.

posted Aug 13, 2015 by Ankur Athari

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Two cards are drawn at random from a pack of 52 cards. What is the probability that the drawn cards are both aces?

posted Nov 14, 2014 by Anamika

+1 vote

What is the probability that picked ball is neither red nor green?

posted Apr 30, 2014 by anonymous

+1 vote

What would be the probability that leap year would have exactly 52 Tuesdays?

posted Dec 30, 2016 by anonymous

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12 identical balls are put on 3 identical boxes. What is the probability that one of the box has exactly 3 balls ?

posted Apr 17, 2015 by Amarvansh

+4 votes

Probability: Two Goats And A Car behind three gate, how to locate the car?

posted Jan 28, 2014 by Atul Mishra

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A bag contain 5 red balls and some blue balls. If the probability of drawing a blue ball from the bag is...........

posted May 3, 2016 by Pankaj Deshmukh

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In a single throw of two dice what is the probability of not getting the same number of both the dice?

posted Sep 25, 2015 by Vikram Luthra

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Distribute the balls (all of them) into the bowls to maximize the chance of picking a white ball?

posted Jul 29, 2017 by Anand Huded

+1 vote

You are going to flip 8 fair coins and 3 of first four have already landed tails. What is expected total count of tails

posted Jan 9, 2017 by anonymous

+1 vote

A letter is chosen at random from letters of English alphabet. Find the probability that it is a letter of word 'DELHI'.

posted Mar 25, 2016 by anonymous

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How can you get a fair coin toss if someone hands you a coin that is weighted to come up heads more often than tails?

posted May 20, 2014 by Salil Agrawal

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A ticket is drawn from a pool of tickets numbered 1 to 20. What is the probability of ticket number is a multiple of 3?

posted Sep 8, 2015 by anonymous

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A bag contain 5 blue & 4 black balls. 3 balls are drawn at random, what is the probability of 2 are blue and 1 is black?

posted Nov 13, 2015 by anonymous

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If a letter is randomly taken from the word Mathematics, what is the probability that it would be a M?

posted Nov 23, 2018 by Deepak Chitragar

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A couple has two children, one of the child is a boy. What is the probability that the other child is also a boy?

posted Aug 23, 2017 by anonymous

+1 vote

Four digit num has all non zero different even digit, what is the probability of first three digits in increasing order?

posted May 6, 2015 by anonymous

+2 votes

Puzzle: What is the probability that their other child is also a girl?

posted Jan 14, 2014 by anonymous

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A box contains 4 red, 6 green & 8 black balls. 3 balls are drawn, find probability of all balls are of different color?

posted Jun 1, 2017 by anonymous

+1 vote

What's the probability that A wins the duel?

posted May 24, 2017 by anonymous

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But somehow, he notices that he is spending 9 times more dates with Mary Jane than Stacy. Can you explain why?

posted Oct 15, 2015 by Brijesh Talwar

+1 vote

What is the probability of getting a sum 6 from two throws of a dice?

posted Apr 30, 2014 by anonymous

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What is the probability that both balls are red?

posted Oct 1, 2014 by Rajni

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6 cards are drawn at random from a standard deck without replacement. Find the probability that all cards are hearts?

posted Aug 8, 2017 by anonymous

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If 1 Jan 2015 is Thursday then what would be the probability of 22nd October to be Wednesday?

posted May 20, 2015 by anonymous

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A fair coin is tossed until a head comes up for first time. What is the probability of this happening on an odd tosses?

posted Jun 26, 2018 by anonymous

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If x+y+z = 9; then what is the probability of having x = y = z = 3 (x, y, z are positive integers)

posted May 29, 2015 by anonymous

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Two unbiased dice are tossed. What is the probability of getting a product divisible by 3?

posted Feb 14, 2019 by anonymous

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A prime number less than 50 is randomly picked, what is the probability that one of its digit will be 1?

posted Dec 11, 2018 by Dilbagh

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It raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

posted May 26, 2017 by Chahat Sharma

+1 vote

If two letters are taken at random from the word CANE, what is the probability that none of the letters would be vowels?

posted Jul 31, 2018 by Mridul

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A letter is chosen from english alphabet. Find the probability that the letter chosen a. is a vowel b. is a consonant

posted Aug 8, 2017 by anonymous

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Five players compete in a table tennis tournament such that each player plays every other player exactly once...........

posted Mar 6, 2023 by Pardeep Kohli

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When you roll 2 fair dice, is the total more likely to be odd or even?

posted Dec 11, 2018 by anonymous

+1 vote

What is the probability that the ticket drawn has a number which is a multiple of 3 or 7 ?

posted Jul 1, 2015 by Samardeep Acharya

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What is the probability that either E occurs or F occurs?

posted Sep 9, 2014 by anonymous

–1 vote

There are 12 boys and 9 girls, if three students are selected at random, find probability of 1 girl & 2 boys selection?

posted May 26, 2017 by anonymous

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What is the probability that the ticket has a number which is a multiple of 3 or 5?

posted Dec 9, 2019 by Anuradha Tabyal

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What is the probability that the number formed is great than 57,26,000?

posted Oct 2, 2014 by anonymous