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Un polyedre ayant comme face 20 triangles 2000-08-02
Sonia pose la question :
J'aimerai savoir comment s'appelle un polyedre ayant comme face 20 triangles équilatéraux égaux.
Chris Fisher lui répond.
The perimeter of 200 acres 2019-06-14
AARON pose la question :
How many feet is the perimeter of 200 acres?
Penny Nom lui répond.
20 mangoes 2016-04-01
Mussharat pose la question :
I have 20 mangoes and have to put them in 5 boxes such that the numbers will be odd numbers.Also I can't cut or take the seed out from the mango . What should I do. It's really confusing.
I'll be more than happy if you could help me.

Penny Nom lui répond.
20 golfers playing a 20 week season 2015-12-07
Jeff pose la question :
We have 20 golfers playing a 20 week season. We play in foursomes. How best to set foursomes so everyone can play with every without playing with the same person multiple times?
Victoria West lui répond.
A six team league to play a 20 game schedule 2015-10-19
Kelly pose la question :
Hi there. Some of your posts are close, but my problem is evening out the home and away games. We have 6 teams in our league and we are going to play a 20 game schedule, playing everyone 4 times. We will play Fridays and Saturdays, each weekend. Of course the ideal would be to have each team have a home and an away game each weekend, but I realize that is impossible, but I would like it as close as possible. Any help would be much appreciated!! We also were considering opening with a home and away - Friday then Saturday with the same teams. Then carrying on with playing everyone else and then possibly finishing up with the same home and home
Victoria West lui répond.
20 golfers for 6 days 2015-09-11
Dave pose la question :
have 20 golfers for 6 days. Each player should pair with 18 golfers used a system on your website which is good for 5 days, but cannot get the 6th day. Thanks for your help Dave
Victoria West lui répond.
20 golfers playing four rounds 2015-08-17
Paul pose la question :
I have a party of 20 golfers playing four rounds in fourballs. I realise that everyone will have 7 players that they do not play with, however I want to ensure that no one plays with the same person twice and that the Captain plays with the 12 players of his choice.
Victoria West lui répond.
20 teams and 10 competition stations 2014-06-04
Joel pose la question :
I have 20 teams. There are 10 competition stations. Each station will accommodate exactly 2 teams to compete with each other at a time.

Each of the 20 teams needs to compete at each of the 10 stations exactly one time.

Here's the catch I cannot solve: how to schedule it so that each team plays EVERY OTHER TEAM once and only once, while never repeating a station.

Victoria West lui répond.
Golf with 3 teams of 20 2014-04-21
Joshua pose la question :
Thank in advance for this great service

Golf - new - 3 teams of 20 - to create 20 unique groups of 3

For example use 3 teams of 3

1a 2a 3a
1b 2b 3b
1c 2c 3c

So groups are
1a 1b 1c
2a 2b 2c
3a 3b 3c

Groups can only have one a, one and one c - and that combo should be unique

Victoria West lui répond.
A golf league with 20 players over 17 weeks 2014-04-12
Chris pose la question :
I have a golf league 20 players and 17 weeks. We don't have teams so I just want to have everyone to play with each other the about same number of time and, hopefully, randomly distributed throughout the season. We have had situations in the past where two people play together for three weeks in a row and then not anymore for the rest of the season. From other posts, I see how to schedule the first 5 weeks without repeats but I can’t figure out an algorithm to for the rest of the season. Thanks!
Victoria West lui répond.
Golf with 20 players and one compulsory bye 2014-03-31
Wayne pose la question :
I'm trying to run an event with 20 players, I would like if at all possible to limit amount of people playing repetitively together. (Mix it up and play with different people). Here's the conditions. I want groups of 4 over 5 rounds. On each round I want 4 players to drop out and have a bye (to help run the game) but I dont want them helping a group they've played in if I can help it. Is this possible ?
Victoria West lui répond.
Counting in base five using words not digits 2014-01-25
Randy pose la question :
We all know how to count (in the base 10/decimal system) using words not numbers. For example: one, two, three, four, five, six, seven, eight, etc. However, in base 5 (for example) how would you count (in words). For sure - in base 5 the number 1 could be "one", the number 2 could be "two". However there seems to be no words to describe base 5 numbers beyond 0,1,2,3 and 4 (and perhaps 10). In base 5 the number 10 is not ten. Rather it is "five". In base 5 what word(s) describe numbers larger than 10? What words are used for 11, 12, 13, 14, 20, 21, 22, 23, 24, 30, 44,...etc. Also, consider a man and woman were married in the Gregorian year 1964. If they had an anniversary tomorrow - how long would you say they've been married in base 5 speak? In numbers their Golden Anniversary would note 200 years of marriage in base 5. How would you articulate their years together in base 5? I don't recall seeing verbiage to represent numbers in any system other than the decimal/base 10 system. Do such things exist for other systems?
Harley Weston lui répond.
20 golfers over 5 days 2013-05-09
Russ pose la question :
we have 20 golfers over 5 days, with 4 people per foursome which makes 5 groups each day. I would like to each person to play with everyone at least once if possible. Do you have a formula for this?
Victoria West lui répond.
Golf for 20, two teams of 10 2012-08-30
Mark pose la question :
Hi I have to teams of 10 people playing Ryder cup format(against each other) Can I have all 20 people playing with someone different over 3rounds of golf while remaining on there respective team I.e. players 1 to 10 must team up with a player of that group against a pair for players 11 to 20
I hope you can solve this for me
Thanks a bunch Mark

Victoria West lui répond.
20 acres, 12 inches deep 2011-02-24
David pose la question :
How many linear yards of material is needed for a square plot of 20 acres by 12 inches deep?
Penny Nom lui répond.
A cylinder is cut at an angle of 20 degrees 2010-01-25
sanjay pose la question :
If I have a cylinder with 40mm diameter and I will cut it at an angle 20 degrees so what would be the increased radius or dia.??? of the cylinder
Penny Nom lui répond.
20 of us golf together in groups of 4 2009-01-24
D. pose la question :
Every Sunday, 20 of us golf together in groups of 4. I am looking for a way that each of us play with 3 other people each week and ultimately get to play in groups that are unique. For instance if week 1, I play with 2, 3, 4 and then the next week I play with 5, 6, 7, and the 3rd week I play with 8, 9, 10 and so forth until I have played with everyone. Everbody else should be doing the same thing. Can you give me a schedule for this and how many weeks would it take for all of us to accomplish this where we all play with different combinations of people. (We should not play with the same person very often or even the same pairs of people but everyone should play with everybody else) I hope this makes sense........whew and thanks!
Victoria West lui répond.
Aboriginal number groupings 2008-09-04
Barbara pose la question :
Our current place value system is based on the notion of 10s. Did Aborginal people use a similar system or did they group numbers differently?
Harley Weston lui répond.
20 golfers playing 5 rounds in 4-somes 2008-09-03
joe pose la question :
20 golfers playing 5 rounds in 4-somes. 5 players in group A play with all 15 golfers in groups B,C,D but not with any in their own group (A). 5 players in group B play with all 15 players in groups A,C,D but not with any in their own group (B) and so on. So each 4-some has an A,B,C,&D player each of the 5 rounds.
Chris Fisher lui répond.
Twenty golfers 2008-03-16
john pose la question :
I have a group of 20 golfers. We plan on playing 6 rounds of golf in 4 days. I would like to have the most possible combinations of players without each player playing with anyone if possible, in the 4 days of golf
Victoria West lui répond.
Golf pairings 2007-10-02
Mike pose la question :
Regarding arranging golf players so no person plays with anyone more than once. You have given examples for 16 and 24 players. If it can be done, i need a solution for 20 players, 4 players per team one round per day for 5 days
Victoria West lui répond.
Twenty golfers 2006-05-08
Mona pose la question :
We have twenty golfers and four rounds of golf. We would like to figure out how to make foursomes so that each golfer plays with as many different golfers as possible.
Penny Nom lui répond.
20 Golfers 2004-10-26
Ian pose la question :
I have 20 golfers playing over 6 days I would like to schedule all 20 golfers in 5 groups of 4 on each day here is the catch.... I would like each player to play with each other once during the 6 days.
Chris Fisher lui répond.
The 20 kilometer walk 2002-08-20
A student pose la question :
THE 1996 OLYMPIC GOLD METAL WINNER FOR THE 20 KILOMETER WALK WAS JEFERSON. HIS TIME WAS 1HOUR, 20 MIN,AND 7SECONDS. HIS TIME WAS NOT GOOD ENOUGH TO BEAT THE WINNER IN 1988 BY JOSEF. HIS TIME WAS 1 HOUR,19 MIN, 57 SECONDS. WHAT WAS THE WALKING RATE OF EACH PERSON?
Penny Nom lui répond.
When will the calendar be the same as 2002? 2002-02-20
John pose la question :
When will the calendar be the same as 2002? I know the answer is 2013, but I don't know how to answer this mathematically, or if it is possible to do so. This is a ninth grade level algebra question my daughter received from her teacher. Any ideas?
Chris Fisher, Patrick Maidorn and Penny Nom lui répond.
What is 20 to the thousandth power? 2002-02-12
Kristi pose la question :
What is 20 to the thousandth power?
Paul Betts lui répond.
Y2K? 1999-09-03
Mike Putzakulish pose la question :
In Y2K, the "K" stands for thousand, but where did the "K" come from? I know it's not a Roman Numeral, but what is it??
Chris Fisher and Harley Weston lui répond.
 
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