Trivia Question 8/2/12 — Gold!


I have a solid 24-karat gold cube 6 inches square.  How much would it weigh on a bathroom scale?


150.76 Pounds


A bathroom scale measures weight in “Avoirdupois” or Imperial pounds where 16 ounces equals one pound.  Precious metals like gold are commonly measured in “Troy” ounces where 12 troy ounces equals one troy pound.  (One troy ounce is equal to 1.09714 avoirdupois ounces).  Since bathroom scales measure weight in imperial pounds, that’s what we’ll use to figure out the answer.

It turns out that 1 cubic inch of pure 24-karat gold weighs 316.598 grams or 11.16767 imperial ounces (or 10.17886 troy oz).
There are 216 cubic inches in a 6-inch cube.


216 cubic inches x 11.16767 ounces = 2,412.21672 ounces divided by 16 ounces to a pound = 150.7635 pounds.

If we wanted to price out the 6-inch cube of gold, we’d have to change the formula to troy ounces and pounds.  The cube would therefore weigh

216 cubic inches x 10.17886 ounces (troy) = 2,198.63376 ounces (troy) x $1589.44 (the current price of gold) = $3,494,596.44


A total of 33 people checked into the Net tonight.  Of those, no people had the correct answer to the Trivia Question.  But, going by Price is Right rules, the closest answer without going over belongs to:
  • Roy — W6REH  who’s answer was 114 pounds.

Once again, thanks to everyone for checking in and supporting the Net.


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