All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Just Math
Sum of the page numbers (Posted on 2018-11-05) Difficulty: 1 of 5
What is the sum of the page numbers of the middle two pages
in a book with k pages?

See The Solution Submitted by Ady TZIDON    
No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)
re: Not so simple (spoiler) | Comment 2 of 3 |
(In reply to Not so simple (spoiler) by Steve Herman)

Perhaps the simplicity would be supplied by assuming a book always has an even number of pages: two pages for each leaf, with no unnumbered page "left intentionally blank".
  Posted by Charlie on 2018-11-05 10:24:28

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 (7)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2018 by Animus Pactum Consulting. All rights reserved. Privacy Information