Tough Interview Questions: Hedge Fund Brainteasers: Blindfolded at a Table |

Tough Interview Questions: Hedge Fund Brainteasers: Blindfolded at a Table |

Jeff Altman, The Big Game Hunter explains how to answer this delicious brainteaser.


I have 1 of those fun hedge fund is today.  I’m going to read it and the answer off my screen.  I’m going to give credit to a website,, where I found this.

You are blindfolded and sit in front of the table.  On the table and many coins, 10 of which have heads facing up.  How do you split the coins into 2 groups such that the same number of coins are heads up in each group? You don’t know how many coins there are.  You cannot tell which coin is facing up in any way?

This is a two-step answer to it..  The 1st is that you take time coins from the group of coins you have.  Let’s say there are 50 points, you take 10. You take all the coins of the group of 10 and Turn them onto their opposite side.   Now you’re done.  Here’s how it works..

If there are 50 coins, and you separate them into 10, you now have a group of 10 and you now have a group of 40.  Let’s say there are 3 groups in the group of 10.  There will be 7 in the group of 40.  From the group of 10, There are 3 coins that are on heads, and 7 coins that are on tails. Turnover the coins in the group of 10.   Now there are 7  heads and 3 tails. Now, there are 7 heads in the group of 40.  Now there are 7 in each group.



Jeff Altman, The Big Game HunterJeff Altman, The Big Game Hunter is a coach who worked as a recruiter for what seems like one hundred years. His work involves career coaching, as well as executive job search coaching, job coaching, and interview coaching. He is the host of “No BS Job Search Advice Radio,” the #1 podcast in iTunes for job search with over 2200 episodes.

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