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Tuesday, August 5, 2014

[PUZZLE] Measure 50% water in Cylindrical glass

We have filled a cylindrical glass with water. We have to measure that  glass have exactly 50% of water. We don't have any measuring instrument. 

Solution:

Two ways can be there.

First tilt the glass to the point water reaches to brim of glass. This same point other side water should be exactly at upper bottom. If this happens them you have water half measured.
If water is lower than upper bottom then its less than 50% and if more than upper bottom then more than 50% water is there.

Other way is to mark the current level of water on glass by placing a finger there. 
Cover glass head with you palm or disc and turn over the glass. If water still touches marked location only then its exact half.

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