Did You Find Out? Get the Answer to the Riddle of E-News Issue No. 1, March 2018
Measuring without Measurements
Measure 4 liters of liquid with two buckets!
With the help of two buckets and a water tap, a specific amount of water must be measured. One bucket holds 5 liters and the other bucket holds 3 liters. Both containers are lacking measurement indicators.
How can you measure a liquid amount of 4 liters using only these two buckets?
Solution
You can measure 4 liters of liquid using these two methods:
Method 1
- First, you fill up the 5 liter bucket and pour 3 liters out of it into the 3 liter bucket. You now have 2 liters in the 5 liter bucket.
- Empty the 3 liter bucket.
- Pour the 2 liters into the now empty 3 liter bucket.
- Next, fill up the 5 liter bucket and pour 1 liter out of it into the 3 liter bucket in order to fill up this container.
- Finally, the larger bucket now contains exactly 4 liters!
Method 2
- Fill up the 3 liter bucket and pour these 3 liters into the 5 liter container.
- Fill the 3 liter bucket again and pour 2 liters of it into the 5 liter bucket.
- Empty the 5 liter container and pour the 1 liter which remains in the 3 liter bucket into the 5 liter bucket.
- Fill up the 3 liter container and pour these 3 liters into the 5 liter container.
- Finally, the larger bucket now contains exactly 4 liters!
Pepperl+Fuchs (Aust) Pty Ltd
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Pepperl+Fuchs is a leading developer and manufacturer of electronic sensors and components for the global automation market. Continuous innovation, enduring quality, and steady growth have been the foundation of our success for more than 70 years. Pepperl+Fuchs employs 6,300 people worldwide and has manufacturing facilities in Germany, USA, Singapore, Hungary, Indonesia and Vietnam, most of them ISO 9001 certified.