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Windows 7: Number Crunching

17 Oct 2009   #11
Barman58

Windows 10 Pro x64 x3, Ubuntu
 
 

No but I think his name was Ivy
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17 Oct 2009   #12
Zen00

Windows 7 Ultimate x64
 
 

Since you all are enjoying math then how about this one?

A bucket has a hole in it. The water flows out of that hole at a rate of 2 gallons per minute. How big is the hole?
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17 Oct 2009   #13
Antman

 

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.

17 Oct 2009   #14
H2SO4

Win7x64
 
 

Quote   Quote: Originally Posted by chuckr View Post
Division by zero:

(a-b), both sides

?
Absolutely.
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17 Oct 2009   #15
jimbo45

Linux CENTOS 7 / various Windows OS'es and servers
 
 

Quote   Quote: Originally Posted by Zen00 View Post
Since you all are enjoying math then how about this one?

A bucket has a hole in it. The water flows out of that hole at a rate of 2 gallons per minute. How big is the hole?

US gals or Imperial gals ??

2 gals / min US = 3.78533 Liters/Minute * 2. (gas fitting stats).
Calculate cylindrical vol from a minutes flow and you should get the hole size.

(Vol = π*r**2*h) you can do the maths.
While you have 2 variables r (radius) and h height only ONE set of values will fit the equation.

For US measurements the hole size should be around 1/2 inch - any old gas fitter / Engineer will tell you that this size pipe will sustain a flow of around 2.2 US gals / min -- near enough the right answer. So consider your hole as the "pipe outlet".


(I'm cheating here - I sometimes to some gas work for neighbours -- I.T doesn't pay anything like it used to anymore and I can get more money spending Sunday repairing a "Bog" or a gas boiler than 3 days of stupid management screaming in an I.T office).



Cheers
jimbo
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17 Oct 2009   #16
Joan Archer

Windows 10 64bit/Windows 10 64bit
 
 

You can have this thread to yourselves maths was always my weaker subject and it's too many years since I was at school and I don't intend to change now.
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17 Oct 2009   #17
H2SO4

Win7x64
 
 

Quote   Quote: Originally Posted by Barman58 View Post
For the original question

Count down the digits on left hand 10-9-8-7-6 then add the right hand

6 + 5 = 11
I still get only 10, and I've been trying for hours - in both directions.

I imagine your polydactyly is a positive mutation as far as typing is concerned? Should give you that evolutionary "edge" in the eyes of the modern woman
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17 Oct 2009   #18
Dwarf

Windows 8.1 Pro RTM x64
 
 

Quote   Quote: Originally Posted by Zen00 View Post
Since you all are enjoying math then how about this one?

A bucket has a hole in it. The water flows out of that hole at a rate of 2 gallons per minute. How big is the hole?
It doesn't matter how big the hole is. The hole is actually the missing bottom of the bucket. So, in effect, the bucket is a tube. In order to get water flowing out at 2 gallons a minute, then water needs to be flowing in at the same rate. This condition will be met so long as the diameter of the bucket is equal to or greater than that of the pipe supplying the water.
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17 Oct 2009   #19
Dwarf

Windows 8.1 Pro RTM x64
 
 

Has anyone yet worked out my other number puzzles?
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17 Oct 2009   #20
H2SO4

Win7x64
 
 

Quote   Quote: Originally Posted by Dwarf View Post
Has anyone yet worked out my other number puzzles?

[nomedia="http://www.youtube.com/watch?v=WOqdSZUuqQ0"]YouTube - Hadrian's Wall[/nomedia]
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