pushing peas around(?) >:^:(>:~:+:@<:)^:(_) 1 3
On 25-02-13 18:34, km wrote:
Here is a two-minute puzzle. Ike and Mike have the same number of pennies, but if Ike gives Mike one penny, Mike will have twice as many as Ike. How many pennies does each have? When I was learning algebra I spent hours devising a solution using two equations in two unknowns, not noticing that one equation in one unknown would do. When I raised this question at dinner with my daughter she solved it in seconds by pushing peas around on her plate. Solve it in seconds with a J exploration! Kip Murray Sent from my iPad ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
-- Met vriendelijke groet, @@i = Arie Groeneveld ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
