Birthday Puzzle

[dolluper]

Mathematics cannot be practically proven!





It is your birthday and you want to buy a good bottle of scotch for $97, since you don't have cash you borrow $50 from your dad and $50 from your mom. Now you have a $100. You purchase the scotch for $97 and are left with $3 change. You return $1 to your dad and $1 to your mom and keep the $1 for yourself. Now you owe your mom $49 and your dad $49. Added together ($49 + $49 = $98) plus your $1 = $99.

Where is the extra $ 1.00 eh???

 

[Tim Frank]

Re: Birthday Puzzle

Mathematics cannot be practically proven!


It is your birthday and you want to buy a good bottle of scotch for $97, since you don't have cash you borrow $50 from your dad and $50 from your mom. Now you have a $100. You purchase the scotch for $97 and are left with $3 change. You return $1 to your dad and $1 to your mom and keep the $1 for yourself. Now you owe your mom $49 and your dad $49. Added together ($49 + $49 = $98) plus your $1 = $99.

Where is the extra $ 1.00 eh???

That isn't math, it's accounting

You mixed credits and debits and came up with a meaningless number....$99-.
You borrowed $100-, paid back $2-....the math says that you still owe $98-.

 

[DECK SWABBER 58]

Re: Birthday Puzzle

Or to put it another way, $97 divided by 2 = $48.50. The change back is $1.50 X 2.

 

[JB]

Re: Birthday Puzzle

You counted the $1 you kept twice and left out the $2 you paid back. There is nothing missing.

This is a version of the old, old, old three salesmen in the hotel tale. I first encountered it in a Navy Tech School in 1953 and it was old then. I have seen 40 students wrestle with it for hours.

 

[angus63]

Re: Birthday Puzzle

Happy Bday, thank your parents, stay in school and $25 Scotch does the trick just as well!

 

[Fishing Dude too]

Re: Birthday Puzzle

It works the same way I have 11 fingers

 

[roscoe]

Re: Birthday Puzzle

The "extra" dollar is for the aspirin you are going to need.

 

[jjacobs007]

Re: Birthday Puzzle

Have someone else pay for it. LOL

 

[raymondpickens]

Re: Birthday Puzzle

In your pocket

 

[dolluper]

Re: Birthday Puzzle

Correct in your pocket...finally
borrowed 100
spent 97
paid back 2 dollars kept 1.. 97+3 = 100
the dollar you kept in your pocket is the missing dollar

 

[bassman284]

Re: Birthday Puzzle

On the plus side, dolluper, sounds like you're ready to start your own Enron.

 

[rogerwa]

Actually you didn't have any money leftover and had to beg for the additional $7.00 for the tax.