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lgbasallote Group Title

There are 13 teams in a tournament. Each team is to play with each other only once. What is the minimum number of days can they all play without any team playing more than one game a day

  • 2 years ago
  • 2 years ago

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  1. Rohangrr Group Title
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    6 and a half days!

    • 2 years ago
  2. lgbasallote Group Title
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    1) that's not correct 2) this doesn't have an "LGBARIDDLE" heading so im asking for solution

    • 2 years ago
  3. Rohangrr Group Title
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    |dw:1348374494350:dw|

    • 2 years ago
  4. pizzapi Group Title
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    13!/[(13-2)!2!]

    • 2 years ago
  5. pizzapi Group Title
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    i think that's right, but let me double check

    • 2 years ago
  6. kulprit Group Title
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    18 DAYS

    • 2 years ago
  7. pizzapi Group Title
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    yep, 13C2

    • 2 years ago
  8. pizzapi Group Title
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    all possible ways to choose 2 team out of 13

    • 2 years ago
  9. lgbasallote Group Title
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    how are you all getting those?

    • 2 years ago
  10. lgbasallote Group Title
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    and i've tried 13C2 @pizzapi it's not that

    • 2 years ago
  11. nphuongsun93 Group Title
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    12 days. <-' I guess

    • 2 years ago
  12. lgbasallote Group Title
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    no. it's supposed to be 13 gamedays with 6 games each. but i don't know how

    • 2 years ago
  13. lgbasallote Group Title
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    13C1?

    • 2 years ago
  14. pizzapi Group Title
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    wait, so all the teams play 6 games each?

    • 2 years ago
  15. lgbasallote Group Title
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    i have no idea. i suppose it means each day has 6 games

    • 2 years ago
  16. pizzapi Group Title
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    13C2 divided by 6

    • 2 years ago
  17. pizzapi Group Title
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    since 6 games per day

    • 2 years ago
  18. lgbasallote Group Title
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    but how do you know 6 games per day?

    • 2 years ago
  19. lgbasallote Group Title
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    it wasn't given

    • 2 years ago
  20. panlac01 Group Title
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    pay attention: What is the minimum number of days can they all play without any team playing more than one game a day?

    • 2 years ago
  21. pizzapi Group Title
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    6 teams can play 1 game everyday

    • 2 years ago
  22. pizzapi Group Title
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    that's the maximum possible games

    • 2 years ago
  23. pizzapi Group Title
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    per day

    • 2 years ago
  24. lgbasallote Group Title
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    it's looking for minimum though

    • 2 years ago
  25. pizzapi Group Title
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    no, its 13 days, with 6 games per day

    • 2 years ago
  26. pizzapi Group Title
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    because a maximum of 6 games can be played per day

    • 2 years ago
  27. pizzapi Group Title
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    12 teams can play 6 games on day 1 repeat for day 2 etc.

    • 2 years ago
  28. lgbasallote Group Title
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    i still don't get the logic why that's the solution

    • 2 years ago
  29. pizzapi Group Title
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    total games=13C2

    • 2 years ago
  30. pizzapi Group Title
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    maximum games per day=6

    • 2 years ago
  31. ganeshie8 Group Title
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    im getting 12 days : first team finishes all its games(12) first day, second team finishes all its remaining games(11) second day, ... 12+11+10+9+8+7+6+5+4+3+2+1

    • 2 years ago
  32. pizzapi Group Title
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    minimum days=total games/max games per day

    • 2 years ago
  33. pizzapi Group Title
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    @ganeshie8 each team can only play 1 game for day

    • 2 years ago
  34. pizzapi Group Title
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    *per

    • 2 years ago
  35. lgbasallote Group Title
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    if you divide total by max..won't that make the final answer max?

    • 2 years ago
  36. ganeshie8 Group Title
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    oops ! bad logic disregard that

    • 2 years ago
  37. pizzapi Group Title
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    no cuz the minimum would be 1 game per day

    • 2 years ago
  38. pizzapi Group Title
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    you are trying to minmize the number of days, by fitting the most games in one day

    • 2 years ago
  39. panlac01 Group Title
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    I don't think you're reading the whole question and given correctly.

    • 2 years ago
  40. lgbasallote Group Title
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    what dp you mean @panlac01 ?

    • 2 years ago
  41. lgbasallote Group Title
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    is there a different solution?

    • 2 years ago
  42. lgbasallote Group Title
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    13C1 gives the same result though...

    • 2 years ago
  43. lgbasallote Group Title
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    13 teams..one game per day...so 13C1 would make sense right?

    • 2 years ago
  44. pizzapi Group Title
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    no, there must be a total of 78 games

    • 2 years ago
  45. pizzapi Group Title
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    13 teams must play all the other teams

    • 2 years ago
  46. lgbasallote Group Title
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    isn't that what 13C1 means?

    • 2 years ago
  47. panlac01 Group Title
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    with 13 teams, only 12 teams can play in one day

    • 2 years ago
  48. pizzapi Group Title
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    no 13 C 1 means the number of ways you can select 1 team from 13 teams

    • 2 years ago
  49. panlac01 Group Title
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    the question is, what is the minimum day that they can ALL play without any team playing more than 1 team a day

    • 2 years ago
  50. lgbasallote Group Title
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    so what are you implying?

    • 2 years ago
  51. pizzapi Group Title
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    12 team playing on 1 day=6 games in total for the day

    • 2 years ago
  52. lgbasallote Group Title
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    this was a question in a board exam back in '94 so it's meant to be tricky

    • 2 years ago
  53. panlac01 Group Title
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    in the first day, you are left with one team unable to play

    • 2 years ago
  54. panlac01 Group Title
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    so you need to move on to the second day to give that specific team who didn't play to play.

    • 2 years ago
  55. lgbasallote Group Title
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    i really think 13C1 makes sense

    • 2 years ago
  56. lgbasallote Group Title
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    in the case of (13C2)/6...why divide by 6? of all the numbers?

    • 2 years ago
  57. pizzapi Group Title
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    6 is the number of games played in 1 day by 12 teams

    • 2 years ago
  58. lgbasallote Group Title
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    but what about for the case of 13 teams?

    • 2 years ago
  59. pizzapi Group Title
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    only 12 teams can play per day because they have to be grouped in teams of 2

    • 2 years ago
  60. lgbasallote Group Title
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    i don't think that means the other team should be disregarded

    • 2 years ago
  61. pizzapi Group Title
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    its a 1v1 match, 2 teams per game

    • 2 years ago
  62. pizzapi Group Title
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    okay, on the first day team 1 vs 2 3 vs 4 5 vs 6 7 vs 8 9 vs 10 11 vs 12 the 13th team can't play because all the other teams have already played a game

    • 2 years ago
  63. lgbasallote Group Title
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    yes i get that. but im asking for the case of 13 teams. is that logic applicable in that case?

    • 2 years ago
  64. lgbasallote Group Title
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    you used 13C2 and then divided by 6 (which is for 12 teams)

    • 2 years ago
  65. pizzapi Group Title
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    13C2 represents the total games because you are select teams of 2 out of 13 teams if you organize all the games, 6 games per day, it would take 13 days in total

    • 2 years ago
  66. pizzapi Group Title
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    *groups of two teams out of 13 teams

    • 2 years ago
  67. panlac01 Group Title
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    so what is the answer with the formula being suggested?

    • 2 years ago
  68. panlac01 Group Title
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    ganesh is close

    • 2 years ago
  69. pizzapi Group Title
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    (13C2)/6 I really need to work on explaining things, hopefully openstudy will help me with that

    • 2 years ago
  70. panlac01 Group Title
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    don't worry bro, you got it from the first time. Illustration makes a better explanation sometimes.

    • 2 years ago
  71. lgbasallote Group Title
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    so do you agree with pizzapi already @panlac01 ?

    • 2 years ago
  72. PhoenixFire Group Title
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    @pizzapi Is right. Because there has to be a total of 78 games played for each team to play each other team. It asks for the minimum number of days for these 78 games to be played in (at least that's the interpretation of the question). So to find that you divide 78 by the maximum number of games that can be played on a single day, which is 6. Therefore, 78/6=13. It takes 13 days for all teams to play each other.

    • 2 years ago
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