perplexus.info :: Numbers : ABCDEABCDEABCDE is one

ABCDEABCDEABCDE is one (Posted on 2023-11-14)

How many arrangements of the letters AAABBBCCCDDDEEE are there such that there are no triple letters in the sequence?

Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Solution: (Hide)

The required number of arrangements is 145,895,280.
For an explanation, refer to the solution submitted by Charlie in this location.

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
re: solution	Steven Lord	2023-11-15 12:45:47
Computer Solution	Larry	2023-11-14 15:05:56
solution	Charlie	2023-11-14 14:46:20

Please log in:

Login:
Password:
Remember me:

Sign up! \| Forgot password

Search:

Search body:

Forums (5)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (11)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info