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

You are not logged in. #1 20081203 06:19:37
how old is jane now?jane and olivia both celebrate their birthday today. In three years, jane #2 20081203 07:23:13#3 20101209 23:43:05
Re: how old is jane now?This is a nice problem that I found while looking through the oldies here. I know this has already been answered by Jane which seems apt. I still enjoyed working on it. Eliminating Jthen: Eliminating Agediff: Eliminating Othen: Easy to solve: Jage = Jane's age = 25 Oage = Olivia's age = 15 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. #4 20110108 08:14:33
Re: how old is jane now?A fun problem. My solution: It's the activity of the intelligence above all that gives charm to existence. 