Examination Probability puzzle
1,217.3K Views
Answered
What is the least number of Candidates needed to appear in a examination of 300 marks, such that there is greater than a 50% chance that at least two of the candidates will have same marks?
Best answer
21
This is similar to the birthday problem, with d = 301. You can refer the birthday problem here.
Your Answer
More puzzles to try-
Newspaper page Puzzle
A newspaper made of 16 large sheets of paper folded in half. The newspaper has 64 pages altogether. The first ...Read More »Making a square larger
You are given four points (on a Euclidian plane) that make up the corners of a square. You may change ...Read More »Quickly Solve the riddle
Quickly Solve this riddle 7 – 4 + 3 * 0 + 1 = ?Read More »Heavy riddle
What gets heavier as you empty it?Read More »Label the Box correctly
There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. ...Read More »Magical liquid in the bottle puzzle
You buy a bottle with a letter from the merchant, the merchant tells you that when you drink the liquid ...Read More »The Peculiar Number
There is a number which is very peculiar. This number is three times the sum of its digits. Can you ...Read More »Animal Party
These are a series of riddles. They are all connected. 1. There are 100 bricks on a plane. One falls ...Read More »Sailing Boat
In a boat, the father of a sailor’s son is sitting with the son of the sailor. However, the sailor ...Read More »Feed me and I live, give me drink and I die riddle
Feed me and I live, give me drink and I die. What am I?Read More »Building with most stories riddle
Which building got the most stories? Read More »Ten Horses and Nine stable Riddle
You have “Ten Horses” and nine stables as [ ] [ ] [ ] [ ] [ ] [ ...Read More »5 Letter Words puzzle, Can you determine the original words?
Below are thirteen 5 lettered, everyday words, each of which has had two of its letters removed. In total these ...Read More »Can you guess girl’s name?
One girl was going to the college, one boy asked her name She replied: “20year6month” Can you guess her name…?Read More »Number Series Pattern
If, 6 / 7 = 2 3 / 9 = 7 8 / 2 = 6 Then 4 / 5 ...Read More »Count the Shoes
All of Jacob’s shoes are red except two. All of Jacob’s shoes are green except two. All of Jacob’s shoes ...Read More »Can you explain the mystery?
Two women were selling marbles in the market place—one at three for a paisa and other at two for a ...Read More »Count The Number Of Lines
Can you count the number of lines in the below picture?Read More »Music
What musical instrument can you hear but can not see or touch?Read More »Many Hands Tree puzzle
How many hands and fingers can you see in the picture?Read More »
Accenture Interview PuzzlesAdobe Interview PuzzlesAge RiddleAkbar Birbal PuzzlesAlgorithm PuzzlesAlphabet riddleAmazon Interview PuzzlesAnalytical MathematicsAptitude PuzzleBank PuzzlesBetting PuzzlesBrain TeasersCalendar PuzzlesCards PuzzlesChess Board PuzzleChess PuzzlesChristmas Puzzlecipher PuzzleCivil Services PuzzleClock time puzzleCognizant Interview PuzzlesCoins PuzzleComputational PuzzleconundrumCoronavirus PuzzleCoupondunia Interview PuzzleCritical Thinking Puzzledata analyticsData Structure Interview QuestionsDecode PuzzleDetective PuzzlesDice PuzzleDictionary Riddlesdifficult riddleEasy Math puzzlesEasy puzzlesEinstein puzzleEnglish RiddleFamily Tree Puzzlefamous puzzleFill in the blanks riddlesFinding Killer RiddlesFlipkart interview puzzlesFunny RiddlesGeneral KnowledgeGeographical PuzzleGoogle Code Jam 2014Google Interview PuzzlesGRE PuzzleHard Puzzle