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3 Men and a little ladder
Posted 23 January 2012 - 11:12 PM
They each contribute 5 coins and give these 15 coins to David who is going to purchase the ladder for them.
David buys the ladder for only 10 coins and feels guilty about keeping all 5 coins change.
He decides to give one coin each back and keep only 2 for himself.
On giving one each back this means that Arnold Bryan and Colin have now spent 4 coins each and David kept 2
David’s share of 2 coins means a total of 14
But we started this question with 15 coins where did the other one go?
I will not accept quantitive easing as a solution. LOL
Posted 23 January 2012 - 11:54 PM
Posted 24 January 2012 - 12:10 AM
Spoiler for CountingA much better version of this puzzle has been posted using a hotel and busboy scenario that introduces a fourth party. This puzzle is directly clear.
If he gave each 2 back he would need to return 6 yet only has 5
Posted 24 January 2012 - 12:59 AM
Arnold, Bryan or Colin have actually spent only 3 coins each because they each got one back: 3x3=9
The three of them kept 1 coin each: 3x1=3
Daniel kept 2 coins: 1x2=2
The two coins Daniel kept were from two of the other three. e.g Arnold & Bryan. The remaining coin is from one of the other three. e.g Colin
3x3=9, so the missing coins must havin(g been spent on the ladder: 9+1=10
I hope this isn't too confusing, I couldn't find a way to put it into context. LOL)
Posted 24 January 2012 - 01:04 AM
ps i <3 you asdf
Posted 24 January 2012 - 01:05 AM
Posted 24 January 2012 - 01:10 AM
Posted 24 January 2012 - 01:33 AM
The ladder was 10 coins.
The ladder real price, divided for the three, is 3,333(3).
Because there isn't 0,333(3) coins, one of the coins had to be spent to pay the ladder : 0,33(3)*3=1 coin
So, one of the coins from one of the people had to be spent to pay this decimal part of the price.
We can't use a determined number of coins equal from each buyer. There is one of them that will have to spend one more on this buying.
(of course, the rest of the problem covers the whole problem of these)
Posted 24 January 2012 - 01:38 AM
10 for the ladder
2 for David
3 for Arnold, Bryan and Colin (one for each)
Therefore there is no missing coin.
(Earlier when I said Daniel it was meant to be david. LOL)
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