Each coin has one side black and one side white.
there's 100 coins and on a table without any order. 90 up with the black side and 10 with the white side. .
The room is completely dark and you are required to divide the coins into two groups(dosent have to be equal groups) so that in each group you will have the same number of coins with white on top.
You can do whatever you want with the coins in the room, know that there is no way to see the colour of the coin.
hint: you can turn over the coins.
mark the solution below...
the solution is very simple.
you need to take 10 random coins to the side and turn them over.
To prove a matter of fact I'll show three cases:
Suppose we did not take even 1 white coin. We have 10 black. we turning over the 10 black> two teams have 10 white
Suppose we took from 1 to 9 white coins, for example four white coins. Remained sixth largest group of white coins. We turned over our 10 small group and we have six white.
Suppose we took all the 10 white, in the largest group no white coin remaind. We turned over our 10 and we have no white coin too.
hope you liked it..
This is reeeeally badly worded =\
ReplyDeleteYeah, it doesn't make any sense. I hope English isn't your first language...
ReplyDeletehuh. i dont get it
ReplyDeletethis guy doesn't make sense
ReplyDeleteIt's completely dark that means no light, if there's no light you can't see any colour, doesn't matter if you flip a coin to white side~ soo easy
ReplyDeleteIdiot .. It Still Wont B An Equal Amout .. You'll Just Have 90 Whites And 10 Blacks, But You Wont B Able To Divide Them Cuz The Light's Off ... You Will End Up With The Same Thing .. Ass
ReplyDeleteYou still didn't explain the solution very well. And it's dark.. How are you supposed to see anything? This is pathetic..
ReplyDeleteturn the fuckin lights on DUHHH!!!
ReplyDeletecan i have this is english???
ReplyDeletemaybe that's why professors at oxford couldn't solve it...
well...
ReplyDeleteuva to hav the same amount of white 1s on top k?
so u kno wer the white 1s r... so put the blak 1s in piles then equaly put the white 1s on top... cuz it says they dont have to be the same amount of blak 1s doesnt it ?
dont make sense mateey
ReplyDeletethis wasn't hard to understand... but of course, my first language isn't english :P
ReplyDeleteLol...The room is Dark..u cant anyways find out the color of the coin...i hope thts wat he meant .. :P
ReplyDeleteI dont get it...what's the riddle?
ReplyDeleteI didn't get it.. Because I didn't even try. XD
ReplyDelete