Sunday, January 19, 2014



MATH CAN BE FUN



(It's an old one so many have probably heard already but one of my 

favorites...taken from a 1974 math journal "mostly for fun"; Three traveling 

men stopped overnight at a hotel and decided to share one room. The room

 cost them $10 each. Later that night, the manager returned from a trip and

 said that the rate for the room should have been a total of $25; so he gave the 

bellboy $5 to return to the men . On his way to the room, the bellboy decided 

that three men couldn't divide $5 evenly among themselves; so he kept $2 to

 himself and returned $3 to the men. Now, this made the cost of the room

 amount to $9 each. In addition, the bellboy had $2. But 9+9+9+2=29. What 

happened to the "missing dollar"?



 In my opinion the bellboy stole more of a proportion than the 3:1 he would have been entitled to if he were one of the three men...1/3=.333......the mens equal portion is $ 8.33. which equals $25...when the bellboy took 2 dollars he stole an unequal proportion

now, he gets 40% instead of 33% which is 7% more than the three guys paid...so...7% (3) =21%......The $5 given to be paid back is %5 on a hundred so the busboy took 2% on a hundred which equals $2
The cost established by the manager was: $30 -$5 =$25. The cost to the customers was ($9)(3)=$27....The difference of $2 is the bellboys theft. That is 27 + (-2) =25 not 29.

Actually, the bus boy is getting screwed since : 20% gratuity out of $5 should be $1; which he got a 40% gratuity which equals $2...However, since 20% of $25 should be $5 he only got an 8% tip....



okay last thing...the missing one percent...8% instead of 7% can be found when the .0333 are multiplied by the three cats...3(.0333) = .099%....which is now the 8% he gets as a tip....Show gratuity to service industry!!!


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