perplexus.info :: Numbers : Move the 2

Move the 2 - double the number (Posted on 2002-04-19)

A certain number ends with the digit 2. Moving the 2 from the end of the number to its front doubles it. Can you find this number?

(Hint: it's quite large)

See The Solution Submitted by levik

Rating: 4.1111 (9 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

re: The continued fraction way

| Comment 9 of 10 |

(In reply to The continued fraction way by Federico Kereki)

I'm not good at math... so my humble oppinion does not matter, but here it is: GENIUS SOLUTION!!! my hat goes off to you

Posted by TheKPAXian on 2009-10-06 19:48:57

Please log in:

Login:
Password:
Remember me:

Sign up! \| Forgot password

Search:

Search body:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (6)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info