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

You are not logged in. #1 20130109 18:00:50
Guess My Number!I am thinking of a two digit number, AB, such that A x B=AB/2, and A+B=AB/4. What is the number AB? #2 20130109 21:20:12
#3 20130110 03:37:26
Re: Guess My Number!Hi; 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. 