# Math Problem **URL:** \ **Category:** General Yo-Yo\ **Created:** [December 17, 2015, 7:31pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422 "2015-12-17T19:31:26Z")\ **Posts on this page:** 19\ **Page:** 1
**Author:** ![Morgoroth](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/morgoroth/32/795_2.png) [@Morgoroth](https://forums.yoyoexpert.com/u/Morgoroth)\ **Post date:** [December 17, 2015, 7:31pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/1 "2015-12-17T19:31:26Z")
I ran into a math problem today that said something like: Jimmy does 21,667 loops with his yoyo in 3 hours. How many could he do in 8? Which got me to thinking, is that at all possible? It sounds crazy, but that’s a hair over two loops a second. Looping is pretty fast–unless your me–so the rate seems possible. But, I seriously doubt anyone–or any yoyo–could keep it up for 3 hours. Much less for 8. Which would be 57778.6666667 loops in case you’re wondering. ---
**Author:** ![KiLbUcK](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/kilbuck/32/794_2.png) [@KiLbUcK](https://forums.yoyoexpert.com/u/KiLbUcK)\ **Post date:** [December 17, 2015, 8:26pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/2 "2015-12-17T20:26:06Z")
What math book supplied this question? ---
**Author:** ![Zorro](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/zorro/32/206266_2.png) [@Zorro](https://forums.yoyoexpert.com/u/Zorro)\ **Post date:** [December 17, 2015, 8:36pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/3 "2015-12-17T20:36:43Z")
😃 I don’t think it’s physically possible. ---
**Author:** ![kyo](https://avatars.discourse-cdn.com/v4/letter/k/df705f/32.png) [@kyo](https://forums.yoyoexpert.com/u/kyo)\ **Post date:** [December 17, 2015, 8:40pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/4 "2015-12-17T20:40:10Z")
Ok, this is actually quite funny… the reason? They took a real record to get that number. 21,663 is the number of loops in 3 hours, set by “Fast Eddy” McDonald in 1990. They were alternating inside/outside loops. Kyle ---
**Author:** ![forge55b](https://avatars.discourse-cdn.com/v4/letter/f/90db22/32.png) [@forge55b](https://forums.yoyoexpert.com/u/forge55b)\ **Post date:** [December 17, 2015, 8:54pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/5 "2015-12-17T20:54:51Z")
That is 2 loops a second which sounds about right. 🙂 21667/3=7222.33 loops an hour 7222.33/60=120.372 loops a minute 120.372/60=2 loops a second ---
**Author:** ![yoyodoc](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yoyodoc/32/48820_2.png) [@yoyodoc](https://forums.yoyoexpert.com/u/yoyodoc)\ **Post date:** [December 17, 2015, 9:01pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/6 "2015-12-17T21:01:13Z")
> [@Morgoroth](#): > > I ran into a math problem today that said something like: Jimmy does 21,667 loops with his yoyo in 3 hours. How many could he do in 8? > > Which got me to thinking, is that at all possible? > It sounds crazy, but that’s a hair over two loops a second. > Looping is pretty fast–unless your me–so the rate seems possible. > But, I seriously doubt anyone–or any yoyo–could keep it up for 3 hours. > Much less for 8. Which would be 57778.6666667 loops in case you’re wondering. It’s that last ‘partial loop’. \< The .6666667th of a loop. That’s the one that causes permanent Brain damage. No kidding… ---
**Author:** ![Nemyo](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/nemyo/32/14407_2.png) [@Nemyo](https://forums.yoyoexpert.com/u/Nemyo)\ **Post date:** [December 17, 2015, 9:27pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/7 "2015-12-17T21:27:17Z")
> [@yoyodoc](#): > > It’s that last ‘partial loop’. \< The .6666667th of a loop. > > That’s the one that causes permanent Brain damage. > > No kidding… yeah i hear that last two thirds is the hardest part of landing all those loops. ---
**Author:** ![YoyoGeezer](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yoyogeezer/32/755_2.png) [@YoyoGeezer](https://forums.yoyoexpert.com/u/YoyoGeezer)\ **Post date:** [December 17, 2015, 11:46pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/8 "2015-12-17T23:46:37Z")
My brain hurts; and I was a Mathematics major in college too. You guys are all loopy. :🙂 ---
**Author:** ![mr.nightshadow95](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/mr.nightshadow95/32/1093_2.png) [@mr.nightshadow95](https://forums.yoyoexpert.com/u/mr.nightshadow95)\ **Post date:** [December 18, 2015, 1:53am UTC](https://forums.yoyoexpert.com/t/math-problem/78422/9 "2015-12-18T01:53:02Z")
It’s a math problem it is not realistic haha. I do not think it is possible tho. ---
**Author:** ![kyo](https://avatars.discourse-cdn.com/v4/letter/k/df705f/32.png) [@kyo](https://forums.yoyoexpert.com/u/kyo)\ **Post date:** [December 18, 2015, 7:38am UTC](https://forums.yoyoexpert.com/t/math-problem/78422/10 "2015-12-18T07:38:06Z")
> [@mr.nightshadow95](#): > > It’s a math problem it is not realistic haha. I do not think it is possible tho. You should read threads before posting in them. ---
**Author:** ![LeDave](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/ledave/32/1590_2.png) [@LeDave](https://forums.yoyoexpert.com/u/LeDave)\ **Post date:** [December 18, 2015, 9:55am UTC](https://forums.yoyoexpert.com/t/math-problem/78422/11 "2015-12-18T09:55:49Z")
I’m not going to solve it for you but it’s quite easier than you think. Using the information provided, You just oughta find out how much he loops it in a hour and times that by 8 ---
**Author:** ![Morgoroth](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/morgoroth/32/795_2.png) [@Morgoroth](https://forums.yoyoexpert.com/u/Morgoroth)\ **Post date:** [December 18, 2015, 12:16pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/12 "2015-12-18T12:16:38Z")
> [@kyo](#): > > Ok, this is actually quite funny… the reason? > > They took a real record to get that number. > > 21,663 is the number of loops in 3 hours, set by “Fast Eddy” McDonald in 1990. They were alternating inside/outside loops. > > Kyle Nice! I had no idea. I’ll have to tell the class today. It’s not from a book. I’m actually not sure what the source is to be honest. If I can find out I’ll let you know. ---
**Author:** ![KiLbUcK](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/kilbuck/32/794_2.png) [@KiLbUcK](https://forums.yoyoexpert.com/u/KiLbUcK)\ **Post date:** [December 18, 2015, 12:18pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/13 "2015-12-18T12:18:36Z")
> [@LeDave](#): > > I’m not going to solve it for you but it’s quite easier than you think. Using the information provided, You just oughta find out how much he loops it in a hour and times that by 8 I’m just going to save kyo some time here - You should read threads before posting in them. ---
**Author:** ![KiLbUcK](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/kilbuck/32/794_2.png) [@KiLbUcK](https://forums.yoyoexpert.com/u/KiLbUcK)\ **Post date:** [December 18, 2015, 12:24pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/14 "2015-12-18T12:24:02Z")
> [@Morgoroth](#): > > Nice!  I had no idea.  I’ll have to tell the class today. > It’s not from a book.  I’m actually not sure what the source is to be honest.  If I can find out I’ll let you know. Simple source = [http://lmgtfy.com/?q=worlds+record+yo-yo+looper](http://lmgtfy.com/?q=worlds+record+yo-yo+looper) ---
**Author:** ![Morgoroth](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/morgoroth/32/795_2.png) [@Morgoroth](https://forums.yoyoexpert.com/u/Morgoroth)\ **Post date:** [December 18, 2015, 12:34pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/15 "2015-12-18T12:34:45Z")
> [@KiLbUcK](#): > > What math book supplied this question? [http://bfy.tw/3Ljx](http://bfy.tw/3Ljx) ---
**Author:** ![mr.nightshadow95](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/mr.nightshadow95/32/1093_2.png) [@mr.nightshadow95](https://forums.yoyoexpert.com/u/mr.nightshadow95)\ **Post date:** [December 20, 2015, 11:01pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/16 "2015-12-20T23:01:59Z")
> [@kyo](#): > > You should read threads before posting in them. I was talking about the 8 hours doing loops. I did read the thread. Thank you have a nice day. ---
**Author:** ![genji](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/genji/32/1027_2.png) [@genji](https://forums.yoyoexpert.com/u/genji)\ **Post date:** [December 21, 2015, 6:39am UTC](https://forums.yoyoexpert.com/t/math-problem/78422/17 "2015-12-21T06:39:59Z")
> [@kyo](#): > > You should read threads before posting in them. OH SNAP! ---
**Author:** ![Gambit](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/gambit/32/1358_2.png) [@Gambit](https://forums.yoyoexpert.com/u/Gambit)\ **Post date:** [December 21, 2015, 2:33pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/18 "2015-12-21T14:33:15Z")
> [@kyo](#): > > Ok, this is actually quite funny… the reason? > > They took a real record to get that number. > > 21,663 is the number of loops in 3 hours, set by “Fast Eddy” McDonald in 1990. They were alternating inside/outside loops. > > Kyle This is why I love having guys like Kyo/yoyodoc/Yossarian on here. So much yoyo-history knowledge that I would have absolutely no idea about. ;D ---
**Author:** ![Zorro](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/zorro/32/206266_2.png) [@Zorro](https://forums.yoyoexpert.com/u/Zorro)\ **Post date:** [December 21, 2015, 2:50pm UTC](https://forums.yoyoexpert.com/t/math-problem/78422/19 "2015-12-21T14:50:16Z")
> [@genji](#): > > OH SNAP! My Yeti string literally snapped while reading this. WHAT HAVE YOU DONE!