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For The Mathematically Inclined

Anil Saigal
03/02/2017

Problem 1:

What number should come next?

7, 10, 8, 11, 9, 12, ...

Problem 2:

What number should come next?

8, 6, 9, 23, 87,...

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Problems from 02/16/17

Problem 1:

You have 6 black socks and 6 white socks in a drawer. They are exactly same except color. You need to pick up a pair of socks without looking into the drawer. What is the minimum number of socks you need to draw to be certain that you have a pair of matching socks.

Problem 2:

In the problem above, what is the minimum socks you need to draw so that you more than 50% certain that you have all black socks?

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