Pocket Gems Interview Question: At a movie theater, the manag... | Glassdoor

Interview Question

Mobile Developer Interview San Francisco, CA

At a movie theater, the manager announces that they will

  give a free ticket to the first person in line whose birthday is the same as someone who has already bought a ticket. You have the option of getting in line at any time. Assuming that you don't know anyone else's birthday, that birthdays are distributed randomly throughout the year, etc., what position in line gives you the greatest chance of being the first duplicate birthday?
logic, analytical reasoning, math

Interview Answer

2 Answers


x/x-1 < 356/(365 - x)

20th on Oct 6, 2012


Arjun on Oct 6, 2012

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