Tuesday, November 13, 2007

The missing dollar paradox

I have uploaded some songs on the right ----> for you guys to chill if your work/studies becomes too overwhelming. Visit this site if you r free too http://www.personalitytest.net/funtest/stress.htm (courtesy of ngai's mail).These tests are just for fun ya, dun take them seriously. Well well, i am burnt out when it is not even the reading week. i din study a lot, but i just cannot concentrate... going to slack tonight. My tfwa friend Joyce said i should be in smu rather then in nus. Its a mistake on my part really that i am in nus... oh well... better days ahead.. (or so i hope).. I so badly want to skate... shall go after my last paper on the 5th of dec.

Anyway, heard of the missing dollar paradox? Here it goes..

Three guests decide to stay the night at a lodge whose rate they are initially told is $30 per night. However, after the guests have each paid $10 and gone to their room, the proprietor discovers that the correct rate should actually be $25. As a result, he gives the bellboy the $5 that was overpaid, together with instructions to return it to the guests. Upon consideration of the fact that $5 will be problematic to split three ways, the bellboy decides to pocket $2 and return $1 each, or a total of $3, to the guests. Upon doing so, the guests have now each paid a total of $9 for the room, for a total of $27, and the bellboy has retained $2. So where has the remaining $1 from the initial $30 paid by the guests gone?!

You have heard or read this before right? Try solving it for yourself. I'd thought of 2 methods. One from debit/credit. The other one is using material balance (for chem eng friends)Have fun... ^^