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mathmath333

  • one year ago

Counting question

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  1. mathmath333
    • one year ago
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    \(\large \color{black}{\begin{align} & \normalsize \text{how many 6 letter words starting with the letter T } \hspace{.33em}\\~\\ & \normalsize \text{can be made from all the letters of the word TRAVEL} \hspace{.33em}\\~\\ & a.)\ 5 \hspace{.33em}\\~\\ & b.)\ 5! \hspace{.33em}\\~\\ & c.)\ 124 \hspace{.33em}\\~\\ & d.)\ \normalsize \text{None of these} \hspace{.33em}\\~\\ \end{align}}\)

  2. anonymous
    • one year ago
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    ignore the T

  3. anonymous
    • one year ago
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    why?

  4. mathmath333
    • one year ago
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    6!

  5. anonymous
    • one year ago
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    @jim_thompson5910

  6. anonymous
    • one year ago
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    because you have no choices there, first letter is T

  7. anonymous
    • one year ago
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    question becomes how many five letter words can you make with ravel

  8. anonymous
    • one year ago
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    id say 5 or 6

  9. pandaecat
    • one year ago
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    seems like 5 to me...

  10. mathmath333
    • one year ago
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    why u dont use t for the rest of 5 letters

  11. anonymous
    • one year ago
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    r u playing a joke on us?

  12. jim_thompson5910
    • one year ago
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    `how many 6 letter words starting with the letter T ` T is locked into slot 1. Focus on the rest of the other slots after slot 1

  13. anonymous
    • one year ago
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    im getting a head ache of this

  14. mathmath333
    • one year ago
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    but it is not specified in question that repetition is not allowed

  15. anonymous
    • one year ago
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    seriously?

  16. anonymous
    • one year ago
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    \[T \{blah\} \{blah\} \{blah\} \{blah\} \{blah\}\]

  17. anonymous
    • one year ago
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    there we go

  18. imqwerty
    • one year ago
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    |dw:1440466170002:dw|

  19. anonymous
    • one year ago
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    lol tnx

  20. anonymous
    • one year ago
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    \[T \{\text{ 5 choices}\} \{\text{ 4 choices}\} \{\text{ 3 choices}\} \{\text{ 2 choices}\} \{\text{ 1 choice}\} \]

  21. imqwerty
    • one year ago
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    i think repetition is not allowed :)

  22. mathmath333
    • one year ago
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    ok i hope repetition not allowed when not given specifically ??

  23. SolomonZelman
    • one year ago
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    which repetitions?

  24. mathmath333
    • one year ago
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    like TTTTTT

  25. imqwerty
    • one year ago
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    :)

  26. mathmath333
    • one year ago
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    lol imquerty

  27. mathmath333
    • one year ago
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    \(\large \color{black}{\begin{align} & \normalsize \text{how many 6 letter words made with T and L } \hspace{.33em}\\~\\ & \normalsize \text{at the end positions from all the letters of the world TRAVEL} \hspace{.33em}\\~\\ & a.)\ 24--> \hspace{.33em}\\~\\ & b.)\ 5! \hspace{.33em}\\~\\ & c.)\ 6! \hspace{.33em}\\~\\ & d.)\ \normalsize \text{None of these} \hspace{.33em}\\~\\ \end{align}}\)

  28. jim_thompson5910
    • one year ago
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    yes, just change satellite's template \[\Large T \{\text{ 4 choices}\} \{\text{ 3 choices}\} \{\text{ 2 choices}\} \{\text{ 1 choice}\} L\] 4*3*2*1 = 4! = 24

  29. mathmath333
    • one year ago
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    but in book answer given isd.) none of these

  30. jim_thompson5910
    • one year ago
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    then it sounds like they're allowing repetition eg: TRRAVL

  31. mathmath333
    • one year ago
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    oh

  32. jim_thompson5910
    • one year ago
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    which isn't exactly fair because they didn't write that in the instructions

  33. mathmath333
    • one year ago
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    by the way i don't trust book lit has many lot of typos which made my head spin in the past lol

  34. jim_thompson5910
    • one year ago
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    then go with 24 and just bring it up with the teacher

  35. imqwerty
    • one year ago
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    |dw:1440467509755:dw| so the answer is 48

  36. mathmath333
    • one year ago
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    omg O.O

  37. imqwerty
    • one year ago
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    :) it is not said that T should be at the 1st point nd Lat the last :) so there can be 2 cases :)

  38. mathmath333
    • one year ago
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    i never knew imquert is so genius O.O

  39. imqwerty
    • one year ago
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    lol

  40. mathmath333
    • one year ago
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    i hope u didnt use google

  41. imqwerty
    • one year ago
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    i don't :P

  42. mathmath333
    • one year ago
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    darn it

  43. jim_thompson5910
    • one year ago
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    @imqwerty I didn't think about swapping L and T. That makes more sense now

  44. imqwerty
    • one year ago
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    lol i used it in that logarithm question that ws too long to type

  45. mathmate
    • one year ago
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    Hi, can I join you guys?

  46. imqwerty
    • one year ago
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    no u can't :)

  47. mathmate
    • one year ago
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    ok! bye!

  48. imqwerty
    • one year ago
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    y do u think so @jim_thompson5910

  49. mathmath333
    • one year ago
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    God damn it , i m so poor in counting questions

  50. mathmate
    • one year ago
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    just kidding!

  51. imqwerty
    • one year ago
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    no no wait @mathmate :)

  52. imqwerty
    • one year ago
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    ok :P

  53. mathmate
    • one year ago
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    "how many 6 letter words made with T and L at the end positions from \(\color{green}{all~the~letters~of~the~word}\) TRAVEL" So no repetition.

  54. mathmate
    • one year ago
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    "how many 6 letter words made with (T and L) at the end positions from all the letters of the world TRAVEL" so XXXXTL or XXXXLT

  55. imqwerty
    • one year ago
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    ( ͡° ͜ʖ ͡°)

  56. mathmate
    • one year ago
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    I think it should be 2*4!, which is none of the choices.

  57. imqwerty
    • one year ago
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    ^

  58. mathmath333
    • one year ago
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    yep

  59. mathmate
    • one year ago
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    Actually another hint was: "how many 6 letter words made with (T and L) at the end position\(s\) from all the letters of the world TRAVEL" the plural of the position-s confirms that both T and L are at the end.

  60. mathmate
    • one year ago
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    So mathmath333, it's great counting day! :)

  61. imqwerty
    • one year ago
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    y do u say it counting :)

  62. mathmath333
    • one year ago
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    cuz perm and comb is counting , i also like the word counting

  63. mathmate
    • one year ago
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    Counting problems! lol

  64. imqwerty
    • one year ago
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    ok :) but y don't u say it permutations and combinations :) or PandC

  65. mathmath333
    • one year ago
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    it sounds boring to say p and c , counting makes sense to moody people like me

  66. imqwerty
    • one year ago
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    i wuld like to give u a medal but i can't :)

  67. mathmath333
    • one year ago
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    np

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