On Wed, 03 Feb 2010 15:35:09 +1000, Soundhaspriority
wrote:

wrote in message


On Feb 2, 11:52*am, Steve Barker wrote:
Completely WRONG information here.



Soundhaspriority wrote:

Each elbow reduces your water pressure by 10%. *10 elbows = no water
pressure.

Robert Morein
Dresher, PA
(310) 237-6511
(215) 646-4894- Hide quoted text -

- Show quoted text -

Even if that WAS true!!!!!

Mathematically ...................

1 divided by 1.1 (to represent a reduction of 10%) ten times = 0.39 or
roughly 40% of the original amount.

OR: If you wish,

1 multiplied by 0.9 (10% percent reduction each time/elbow) ten times
= 0.35 or roughly 35% of the original!
In other words 90% of 90% of 90% etc. etc.

Not ten times 10% = 100%.

To put it another way; suppose one had $100 and told your ten
relatives that you would give the first one you met 10% of the 100,
that person would get ten dollars. The next one you met you would give
10% of the remaining $90, or $9. The next would get 10% of the
remaining $81, or $8.10 etc. etc. After the tenth relative there would
be $34.86 left over?

Or have I missed something?

Yes.

I almost have two doctorates from Drexel University in Engineering.

I'll have to remember to hold that against any job applicants with
degrees from there.