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mathmath333

  • one year ago

How many natural numbers are there that are smaller than 10^4 and whose decimal notation consists only of the digits 0,1,2,3 and 5 ,which are not repeated in any of these numbers ?

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  1. mathmath333
    • one year ago
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    \(\large \color{black}{\begin{align} & \normalsize \text{ How many natural numbers are there that are smaller than}\hspace{.33em}\\~\\ & \normalsize 10^{4} \ \text{ and whose decimal notation consists only of the }\hspace{.33em}\\~\\ & \normalsize \text{digits }\ 0,1,2,3\ \text{and}\ 5\ \text{,which are not repeated in any of } \hspace{.33em}\\~\\ & \normalsize \text{ these numbers ?}\hspace{.33em}\\~\\ & a.)\ 32 \hspace{.33em}\\~\\ & b.)\ 164 \hspace{.33em}\\~\\ & c.)\ 31 \hspace{.33em}\\~\\ & d.)\ 212 \hspace{.33em}\\~\\ \end{align}}\)

  2. mathmath333
    • one year ago
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    I m also unable to interpret the que

  3. BAdhi
    • one year ago
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    so what we have to do is place given digits to maximum four slots (because a number smaller than \(10^4\) has 4 digits) and find how many combinations we can make. When doing that we should neglect the occasion where 0 comes as the left most digit also

  4. mathmath333
    • one year ago
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    Does this question means how many \(4\) digit numbers can be made with \(\{0,1,2,3,5\}\) no repetition allowed

  5. BAdhi
    • one year ago
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    not only 4 digits it could be 3,2 or 1 also since all of them are less than 10^4

  6. mathmath333
    • one year ago
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    oh i see now.

  7. mathmath333
    • one year ago
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    The question's accent was confusing.

  8. imqwerty
    • one year ago
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    (:

  9. imqwerty
    • one year ago
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    164?

  10. BAdhi
    • one year ago
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    yep

  11. imqwerty
    • one year ago
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    ส็็็็็็็็็็็็็็็็็็็_(ツ)_ส้้้้้้้้้้้้้้้้้้้้

  12. mathmath333
    • one year ago
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    |dw:1443002181598:dw|

  13. mathmath333
    • one year ago
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    |dw:1443002278573:dw|

  14. imqwerty
    • one year ago
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    |dw:1443002211822:dw|

  15. imqwerty
    • one year ago
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    wow thas so kewl ;-;

  16. mathmath333
    • one year ago
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    lol

  17. imqwerty
    • one year ago
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    i will install win 10 on sunday cause chrome is not wrkin on my laptop :)

  18. mathmath333
    • one year ago
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    |dw:1443002409414:dw|

  19. imqwerty
    • one year ago
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    lawl

  20. imqwerty
    • one year ago
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    |dw:1443002538576:dw|

  21. mathmath333
    • one year ago
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    haha very creative

  22. imqwerty
    • one year ago
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    hahah cx

  23. imqwerty
    • one year ago
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    |dw:1443002878589:dw|

  24. mathmath333
    • one year ago
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    |dw:1443003062275:dw|

  25. imqwerty
    • one year ago
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    ahahahahah xD

  26. mathmath333
    • one year ago
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    that is imquerty ^

  27. imqwerty
    • one year ago
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    :o that powerful tiger yes yes :) i agree

  28. mathmath333
    • one year ago
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    no lol that boy|dw:1443003328287:dw|

  29. imqwerty
    • one year ago
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    lol i dun have that kinda ear nose hair lol haha XD

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