Thread: New Math Question

08012005, 09:36 PM #1
New Math Question
Here's a brainteaser that I learned in college about a year ago. Our professor said that they use this one during some Microsoft job interviews. Here it goes.
You have $100 dollars cash that you need to put into envelopes in order to give change. Your manager wants you to use the least amount of envelopes necessary to make change for any amount. How many envelopes does it take to make every correct amount of change, using the minimum amount of envelopes?Skol!
Go Vikings!

08012005, 09:42 PM #2
Re: New Math Question
"NeoVikesTX" wrote:
Here's a brainteaser that I learned in college about a year ago. Our professor said that they use this one during some Microsoft job interviews. Here it goes.
You have $100 dollars cash that you need to put into envelopes in order to give change. Your manager wants you to use the least amount of envelopes necessary to make change for any amount. How many envelopes does it take to make every correct amount of change, using the minimum amount of envelopes?
So you can only put 1 bill in each envelope? I am confused.

08012005, 09:46 PM #36KINGS Guest
Re: New Math Question
Mongo say 1....................

08012005, 09:46 PM #4Rookie
 Join Date
 Dec 1969
 Posts
 114
Re: New Math Question
wouldnt it be
420s
110
15
44s
so my guess is ten bills or envelopes

08012005, 09:47 PM #5
Re: New Math Question
1 envelope filled with 100 one dollar bills.

08012005, 09:48 PM #6
Re: New Math Question
"muchluv4smoot" wrote:
"NeoVikesTX" wrote:
Here's a brainteaser that I learned in college about a year ago. Our professor said that they use this one during some Microsoft job interviews. Here it goes.
You have $100 dollars cash that you need to put into envelopes in order to give change. Your manager wants you to use the least amount of envelopes necessary to make change for any amount. How many envelopes does it take to make every correct amount of change, using the minimum amount of envelopes?
So you can only put 1 bill in each envelope? I am confused.
You must have an envelope for any amount of change the customer wants. 7 dollars, 72 dollars, 20 dollars, 1 dollar, whatever. You can combine envelopes to make combinations.
For example, you could put one dollar in 100 envelopes and make change for anything by combining envelopes, but you need to make the LEAST amount of envelopes. Hope this helps.Skol!
Go Vikings!

08012005, 09:49 PM #7Del Rio Guest
Re: New Math Question
1 very large envelope
My brain is fried so I will have to attempt this on the morrow. All I see when I blink is AG BF DJ...................

08012005, 09:51 PM #8
Re: New Math Question
"HerdDaVikes" wrote:
wouldnt it be
420s
110
15
44s
so my guess is ten bills or envelopes
"muchluv4smoot" wrote:
1 envelope filled with 100 one dollar bills.
P.S. You cannot open the envelopes.Skol!
Go Vikings!

08012005, 09:55 PM #9
Re: New Math Question
Got it.
One with $50, one with $20, 2 with $10, one with $5, one with $4, one with $3, one with $2, and one with $1
So in other words 9 envelopes.

08012005, 09:57 PM #10
Re: New Math Question
"muchluv4smoot" wrote:
Got it.
One with $50, one with $20, 2 with $10, one with $5, one with $4, one with $3, one with $2, and one with $1
So in other words 9 envelopes.Skol!
Go Vikings!
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