Crack your brain…
5 stickers – 3 of them are red & 2 of them are blue.
3 TOP Mathematicians are gathered together. They are wore a hat. Each of them had a sticker on their hat and the extra 2 stickers are hidden from them. The 3 Mathematicians can see each other’s sticker except their own one.
The 1st one said,” I don’t know my colour.”
The 2nd one said,” I don’t know my colour too.”
And the amazing thing is, the 3rd Mathematician find out his own sticker colour and said out his colour straight away!!
Are you able to Guess how does he come to his conclusion? And are you able to express your answers clearly??
THIS IS A CONTEST!! ANYONE WHO SOLVED THIS WILL RECEIVE A PRIZE FROM ME!! LEAVE YOU ANSWER AND CONTACT UNDER HERE AS COMMENTS! 1st come 1st serve!
18/04/2010 at 2:11 pm Permalink
Mathman #3 had a red sticker, #1 and #2 had blue stickers. So #3 knows immediately he cannot have a blue one. However, #1 sees #2′s blue sticker and #3′s red sticker, and there is a 50-50 chance either way for him to guess right. #2 also sees the same thing and also cannot guess his colour.