In a distant, dark forest, lives a population of 400 highly intelligent dwarfs. The dwarfs all look exactly alike, but only differ in the fact that they are wearing either a red or a blue hat. There are 250 dwarfs with a red hat and 150 dwarfs with a blue hat. Striking however, is that the dwarfs don’t know these numbers themselves and that none of them knows what the colour of his hat is (there are for example no mirrors in this forest). But the dwarfs do know that there is at least one dwarf with a red hat.
During a certain period of their year, there is a big party in this village, to which initially all dwarfs will go. However, this party is only intended for dwarfs wearing a blue hat. Dwarfs with a red hat are supposed never to return to the party again, as soon as they know that they are wearing a red hat.
How many days does it take before there are no more dwarfs with a red hat left at the party?
---
Best Jokes @ jokes.humourbox.info
Showing posts with label math. Show all posts
Showing posts with label math. Show all posts
Friday, July 15, 2011
Thursday, July 14, 2011
Pirate Ship Treasure Splitting
A pirate ship captures a treasure of 1000 golden coins. The treasure has to be split among the 5 pirates: 1, 2, 3, 4, and 5 in order of rank. The pirates have the following important characteristics:
Starting with pirate 5 they can make a proposal how to split up the treasure. This proposal can either be accepted or the pirate is thrown overboard. A proposal is accepted if and only if a majority of the pirates agrees on it.
What proposal should pirate 5 make?
--
filmy.humourbox.info
- Infinitely smart.
- Bloodthirsty.
- Greedy.
Starting with pirate 5 they can make a proposal how to split up the treasure. This proposal can either be accepted or the pirate is thrown overboard. A proposal is accepted if and only if a majority of the pirates agrees on it.
What proposal should pirate 5 make?
--
filmy.humourbox.info
Marble Weighing Problem
In front of you are 10 bags, filled with marbles. The number of marbles in each bag differs, but all bags contain ten marbles or more. Nine of the ten bags only contain marbles of 10 grams each. One bag only contains marbles of 9 grams. In addition, you have a balance which can weigh in grams accurate, and you are allowed to use it only once (i.e. weigh a single time).
How can you find out in one weighing, which bag contains the marbles of 9 grams?
--
Cool Jokes @ jokes.humourbox.info
How can you find out in one weighing, which bag contains the marbles of 9 grams?
--
Cool Jokes @ jokes.humourbox.info
Subscribe to:
Posts (Atom)