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mathmath333

  • one year ago

Counting Problem

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  1. mathmath333
    • one year ago
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    \(\large \color{black}{\begin{align} & \normalsize \text{Find the number of words with or without meaning which can be made } \hspace{.33em}\\~\\ & \normalsize \text{using all the letters of the word AGAIN. If these words are written as } \hspace{.33em}\\~\\ & \normalsize \text{as in a dictionary, what will be the 50th word?} \hspace{.33em}\\~\\ \end{align}}\)

  2. freckles
    • one year ago
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    hmmm we know there will by 5!/2! words aka 60 words so now we got to figure out I guess how many words start with a, how many with g, how many with i, and then last how many with n

  3. mathmath333
    • one year ago
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    yes

  4. mathmath333
    • one year ago
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    dictionary operates in alphabetical order

  5. ganeshie8
    • one year ago
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    I think it would be easy to count from the last page (60th word)

  6. ganeshie8
    • one year ago
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    or in reverse alphabetical order..

  7. mathmath333
    • one year ago
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    i still dont understand how to find 50th word

  8. ganeshie8
    • one year ago
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    First notice that finding 50th word in alphabetical order is same as finding 11th word in reverse alphabetical order

  9. mathmath333
    • one year ago
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    yes i get that

  10. ganeshie8
    • one year ago
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    whats the first word in reverse alphabetical order ?

  11. mathmath333
    • one year ago
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    \(\large \color{black}{\begin{align} sleek-feathered oneA\hspace{.33em}\\~\\ \end{align}}\)

  12. mathmath333
    • one year ago
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    lol \(\large \color{black}{\begin{align} \text{sleek-feathered oneA}\hspace{.33em}\\~\\ \end{align}}\)

  13. ganeshie8
    • one year ago
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    openstudy doesn't like sleek-feathered oneA try putting spaces between letters..

  14. mathmath333
    • one year ago
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    openstudy is misunderstanding my word hmm

  15. mathmath333
    • one year ago
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    \(\large \color{black}{\begin{align} \text{N_I_G_A_A}\hspace{.33em}\\~\\ \end{align}}\)

  16. ganeshie8
    • one year ago
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    Right, Fix first letter. Forget about first letter. How many words can you make with the remaining four letters ?

  17. mathmath333
    • one year ago
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    4!/2!=12

  18. ganeshie8
    • one year ago
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    Yes, whats the 12th word ?

  19. mathmath333
    • one year ago
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    \(\large \color{black}{\begin{align} \text{N_A_A_G_I}\hspace{.33em}\\~\\ \end{align}}\)

  20. ganeshie8
    • one year ago
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    Yes, whats the 11th word ?

  21. mathmath333
    • one year ago
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    \(\large \color{black}{\begin{align} \text{N_A_A_I_G}\hspace{.33em}\\~\\ \end{align}}\)

  22. mathmath333
    • one year ago
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    is it correct

  23. ganeshie8
    • one year ago
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    Yep! thats the 11th word in reverse alphabetical order

  24. ganeshie8
    • one year ago
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    As discussed earlier, that will be the 50th word in alphabetical order

  25. mathmath333
    • one year ago
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    yep thnkz

  26. mathmath333
    • one year ago
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    by the what is this file about , i get it with an error page http://assets.openstudy.com/updates/1235123123/file-name.thing

  27. ganeshie8
    • one year ago
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    looks the requested file either doesnt exist or you don't have permissions to access that file

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