perplexus.info :: Probability : Multiples of 6

Multiples of 6 (Posted on 2024-02-22)

The number 24 is a multiple of 6, and its reversal, 42, is also a multiple of 6.

What is the probability that the reversal of any randomly-chosen multiple of 6 is also a multiple of 6?

See The Solution Submitted by K Sengupta

Rating: 5.0000 (1 votes)

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

re: Benford's Law

| Comment 5 of 9 |

(In reply to Benford's Law by Steve Herman)

And yet a program checking every 6th number from 0 to 10^8 shows very close to 4/9.

Maybe it is because Benford's Law is related to randomly chosen real world data rather than selecting randomly from all possible numbers from a to b.

Posted by Larry on 2024-02-22 13:51:59

Please log in:

Forums (4)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (13)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info