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

Home > Numbers
THREE Triangular Numbers (Posted on 2008-10-21) Difficulty: 3 of 5
Tom, Dick and Harry each chose a different 5-digit triangular number whose digits fell into the pattern THREE, where each different letter represents a different base-10 digit.

Dick's triangular number had no digit in common with either Tom's or Harry's.

What was Dick's number? What two triangular numbers did the other two choose?

See The Solution Submitted by Charlie    
Rating: 2.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
No peaking... | Comment 1 of 4
There are nine triangular numbers which meet this pattern (assuming no leading zero).  Dick's number is between the other two, but the sum of the five digits in his is greater than the sum of the ten digits in the other two.  Cf NS1510 (I peaked)
  Posted by ed bottemiller on 2008-10-21 12:45:28
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 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information