Three logicians were seated around a table. They were blindfolded and a colored hat was placed on each of their heads. They were told a true statement
The hats on your heads were chosen among 3 black hats, 2 white hats.
Logicians look at each other's hat, after a while, logicians look and smile at each other and somehow they all figure out what colored hats are placed on their head like at the same time without even saying a word to each other.
How and what colored hats are placed on their heads?