Hatrack River Forum: An interesting number/time.

This is topic An interesting number/time. in forum Books, Films, Food and Culture at Hatrack River Forum.

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Posted by Dan_raven (Member # 3383) on :

Bored out of my skull and watching the clock the other day I realized something interesting.

Well, interesting to any number nerds out there.

I am thinking of a number.

Its 1/5 less than 1/2 an hour.
Its 1/5 more than 1/3 an hour.
Its 3/5 more than 1/4 an hour.
and
Its 2/5 of 1 hour.

And the number has no 5 in it.

What is the number.

(and if any of my math is wrong, feel free to scream and point)

Posted by Humean316 (Member # 8175) on :

24?

Posted by Nighthawk (Member # 4176) on :

/time and space continuum asplodes

Posted by Dan_raven (Member # 3383) on :

Yes, and its a descent TV show as well.

1/2 hour = 30 minutes. 1/5 of 30 is 6. 30-6=24.
1/3 hour = 20 minutes. 1/5 of 20 is 4. 20+4=24.

etc. etc.

ok. When I'm bored I go into nerd zone.

Posted by Tatiana (Member # 6776) on :

The reason that 60 was picked as the number of minutes in an hour is that it's divisible by 2, 3, 4, 5, 6, 10, 12, and 15.

Posted by Qaz (Member # 10298) on :

It also ends in a cliffhanger every week.

Edit: now that I see the other comments I retract my anticipated joke.

Posted by brojack17 (Member # 9189) on :

720, your credit score.

Posted by BlackBlade (Member # 8376) on :

quote:
Originally posted by brojack17:
720, your credit score.

The FIRST time I saw that commercial and the guy asked me if I knew what number he was thinking of I honestly said in my head, "720!" It was kinda creepy when he corroberated that I had just read his mind.

It was just alittle stranger to get a new license plate and see 720 emblazoned on the plate when I asked for a random number. I'm too afraid to look up my credit score for fear of being attacked again by the number seven hundred and twenty.

Posted by Mike (Member # 55) on :

720! is a very large number. I wish 720! was my credit score.

OK, here we go, my favorite number sequence puzzle: what comes next in this sequence?

0, 1, 2, 720!, ...

Posted by martha (Member # 141) on :

Hmmm, google doesn't seem to acknowledge punctuation, which is a problem when you're trying to make a distinction between n and n!.

Posted by HollowEarth (Member # 2586) on :

How about 620448401733239439360000!

To express it in the same manner as 720!

Posted by Shawshank (Member # 8453) on :

42.

Posted by Qaz (Member # 10298) on :

24!!!

Posted by Mike (Member # 55) on :

Close, HollowEarth, but 0! = 1. Qaz has it.

Posted by HollowEarth (Member # 2586) on :

So its:

code:

n |  0  |  1  |  2  |  3  |  4   |  5
  |  0  |  1! |  2!!| 3!!!| 4!!!!| 5!!!!!

then?

edit:

Incidently I can't find your sequence in here. They have one that's close but its obviously not what you've got in mind.

Posted by Mike (Member # 55) on :

Yup.

Posted by Tatiana (Member # 6776) on :

That's awfully cool, I think! [Smile]

Posted by Nighthawk (Member # 4176) on :

quote:
Originally posted by HollowEarth:
Incidently I can't find your sequence in here. They have one that's close but its obviously not what you've got in mind.

Wow... that site's useful... and useless... at the same time!