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More Hedge Fund Brainteasers | JobSearchTV.com

More Hedge Fund Brainteasers | JobSearchTV.com


In this video, Jeff Altman, The Big Game Hunter explains how to answer one of those tricky brain teasers hedge funds are known to ask — how do you fill a jar with exactly 4 gallons of water if we give you a 5 gallon jug and a 3 gallon jug of water? 

Summary

Today, I'm going to talk with you about one of those tough interview questions. One of those brain teasers that hedge funds often use when they're interviewing someone. The question goes something like this.

How do you get exactly four gallons if we give you a five gallon and a three gallon, bucket/jar whatever the item is.

Now, this is initially, I know when I first saw this years ago, I kind of went, "huh, should be easy," and I kind of hacked around that for a little bit, but I figured it out in a couple minutes. I want to make it easy for you. So here's how it goes.

Take the five gallon jug of water, pour it and fill up the three gallon. So, now you have two left in the five. You have the full three. What do you think you ought to do?

Pour out the three. Now, you have none and two. Fill up the three gallon with two fill up the five again. Got it so far? So, you now have two gallons in the three and five gallons in the five and, then, you pour water one gallon into the three and that means you're left with four in the five-gallon jug. Remember, they didn't tell you how to do with one move. They told you "how do you do this?"

ABOUT JEFF ALTMAN, THE BIG GAME HUNTER

Jeff Altman, The Big Game Hunter
Jeff Altman, The Big Game Hunter

Jeff Altman, The Big Game Hunter is a career and leadership coach who worked as a recruiter for more than 40 years. He is the host of “No BS Job Search Advice Radio,” the #1 podcast in iTunes for job search with more than 1400 episodes and his newest show, “No BS Coaching Advice.” He is a member of The Forbes Coaches Council. “No BS JobSearch Advice Radio” was recently named a Top 10 podcast for job search. JobSearchTV.com was also recently named a Top 10 YouTube channel for job search.

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Jeff Altman, The Big Game Hunter
Jeff Altman, The Big Game Hunter

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7 responses to “More Hedge Fund Brainteasers | JobSearchTV.com”

  1. This was also in Die Hard 2. Probably much easier to solve when you aren’t
    at risk to being blown up 🙂

  2. This was also in Die Hard 2.  Probably much easier to solve when you aren’t at risk to being blown up 🙂

  3. This was also in Die Hard 2.  Probably much easier to solve when you aren’t at risk to being blown up 🙂

  4. you can also do the following: (g3 = 3 gallon, g5 = 5 gallon)

    – top up the g3 so left with 2gallons in g5 and full g3
    – empty g5
    – pour ur entire g3 3 gallons into g5
    – top up g3
    – fill g5 with 2 gallons from g3
    – left with 1 gallon in g3 and full 5 gallons in g5
    – empty g5
    – pour ur 1 gallon from g3 into g5
    – fill g3 and pour entire contents in g5

    => 4 gallons in g5!

  5. you can also do the following: (g3 = 3 gallon, g5 = 5 gallon)

    – top up the g3 so left with 2gallons in g5 and full g3
    – empty g5
    – pour ur entire g3 3 gallons into g5
    – top up g3
    – fill g5 with 2 gallons from g3
    – left with 1 gallon in g3 and full 5 gallons in g5
    – empty g5
    – pour ur 1 gallon from g3 into g5
    – fill g3 and pour entire contents in g5

    => 4 gallons in g5!

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