All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Logic > Weights and Scales
Water Works (Posted on 2002-11-02) Difficulty: 2 of 5
You have a 5 gallon jug and a 3 gallon jug. You have no other measuring devices.

Measure out exactly 4 gallons of water (Assume you have a river handy, or some other limitless water supply).

See The Solution Submitted by scunny    
Rating: 2.2667 (15 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution Puzzle Resolution Comment 17 of 17 |

Let us denote the 3 gallon jug by A and the 5 gallon jug by B.

Step 1: Fill B with water.

Step 2: Empty B into A. Precisely  2 gallons now remain in B.

Step 3: Empty jug A.

Step 4: Pour the 2 gallons from B into A.

Step 5: Fill out B. Transfer 1 gallons of B into A.

B will now contan precisely (5-1) =  4 gallons.

Thus, we have measured out exactly 4 gallons of water  as desired.

  Posted by K Sengupta on 2007-06-18 05:49:43
Please log in:
Remember me:
Sign up! | Forgot password

Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (2)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Copyright © 2002 - 2018 by Animus Pactum Consulting. All rights reserved. Privacy Information