wu :: forums - Quarter Stacking Riddle

wu :: forums « wu :: forums - Quarter Stacking Riddle » Welcome, Guest. Please Login or Register. Mar 22^nd, 2025, 2:09am
RIDDLES SITE WRITE MATH! Home Help Search Members Login Register

   wu :: forums
   riddles
   microsoft (Moderators: Icarus, SMQ, william wu, towr, ThudnBlunder, Eigenray, Grimbal)
   Quarter Stacking Riddle

« Previous topic | Next topic »

Pages: 1 2

Notify of replies

Send Topic

Author

Topic: Quarter Stacking Riddle (Read 28843 times)

Lee McLemore
Guest

Re: Quarter Stacking Riddle
« Reply #25 on: Mar 4^th, 2005, 12:11pm »

Quote

Modify

Remove

One U.S. mint quarter is approximately 1/16 of an inch in thickness. Therefore, there are 16 quarters per inch and times 12 inches per foot will give you 192 quarters per foot. The height of the Empire State Building is easily found to be 1250 feet. Therefore, 192 quarters per foot times 1250 feet will give you 240,000 quarters. Wink

IP Logged

Icarus
wu::riddles Moderator
Uberpuzzler

Boldly going where even angels fear to tread.

Gender: male

Posts: 4863

Re: Quarter Stacking Riddle
« Reply #26 on: Mar 4^th, 2005, 4:16pm »

Quote

Modify

Measurement of a sample of 10 quarters led me to value of 1/15 of an inch:

on Feb 5^th, 2004, 7:56pm, Icarus wrote:

I just measured a stack of 10 quarters with a set of calipers. The thickness was 0.663 inches, or 0.0663 inch/quarter. The official ESB website gives the height as 1,454 feet = 17,448 inches. So we have:

# of quarters * (0.0663 inches/quarter) = 17,448 inches.

Dividing by 0.0663 gives (# of quarters) = 17,448 in/(0.0663 in/quarter) [approx] 263,000.

So it would take about 263,000 quarters ([pm] 1000 or so).

However, I think the difference in height between your value and mine is a matter of definition. Your number agrees with that published by the Council on Tall Buildings and Urban Habitats, who do not include antennas and such in the height, while the ESB website may have.

IP Logged

"Pi goes on and on and on ...
And e is just as cursed.
I wonder: Which is larger
When their digits are reversed? " - Anonymous

Pages: 1 2

Notify of replies

Send Topic


« Previous topic \| Next topic »