Quote Originally Posted by Pepe n Pilar View Post
You guys are obviously too good at the basic maths puzzles. Hope this one will keep you busy for a bit longer.

Here is the problem.

•You are in a room with 10 cases, each containing 20 metal bars.
•Nine of the cases contain bars of worthless base metal that looks like gold and one case contains bars of solid gold.
•You know that each bar of base metal weighs exactly 1 pound and each gold bar weighs one pound and one ounce.
•There is an electronic scale in the room, but it can only be used once and will flash the weight for only 5 seconds.
•You have no other equipment.
•You may leave the room with one case, which is yours to keep.
•How do you pick the right case?

Remember, you are looking for a mathematical solution so no questions please about whether the bars are painted, or feel different, or if there is a way to use the scales more than once, etc.

Good luck.

Mr P&P
NOSEBLEED!!!! lol... i'm soooo glad I took Comm Arts.. less Math (just Algebra and Trigo) and no Calculus (thank God!)