Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #2 20100326 06:30:35
Re: "Work" problemIn other words, A takes 12 hours to paint the house, B takes 6 hours to paint the house, and C takes 24 hours to remove all the paint from the house. #3 20100326 13:47:23
Re: "Work" problemHi soroban; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #5 20100401 05:14:58
Re: "Work" problem"Shoot C", indeed! When you're old and your eyes are dim, There ain't no old shep gonna happen again We'll still go walking down country lanes, I'll sing the same old song Hear me call your name 