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kanwal32

  • one year ago

S={0,2,4,6,8} number of 4 digit numbers divisble by 5 using S repetition allowed

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  1. kanwal32
    • one year ago
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    |dw:1434107799743:dw|

  2. kanwal32
    • one year ago
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    |dw:1434107953036:dw|

  3. kanwal32
    • one year ago
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    @ganeshie8 plss needed ur hlp

  4. kanwal32
    • one year ago
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    @nincompoop

  5. ganeshie8
    • one year ago
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    That looks good! \[4*5*5*1\]

  6. kanwal32
    • one year ago
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    but answer in the text book is 76

  7. kanwal32
    • one year ago
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    first i used the same thing u used

  8. kanwal32
    • one year ago
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    but answer is 76

  9. kanwal32
    • one year ago
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    there is overcounting somewhere

  10. kanwal32
    • one year ago
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    @ganeshie8 hlp

  11. kanwal32
    • one year ago
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    here all number would be divisble by 2 also

  12. kanwal32
    • one year ago
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    @hartnn

  13. kanwal32
    • one year ago
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    are u stuck @ganeshie8

  14. kanwal32
    • one year ago
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    is also did the same thing as u did but i closed the question the again wrote but answer is 80

  15. kanwal32
    • one year ago
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    should i give the options

  16. kanwal32
    • one year ago
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    The 1 st part was the number of such numbers which are even using S

  17. kanwal32
    • one year ago
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    |dw:1434108747377:dw|

  18. kanwal32
    • one year ago
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    4*5*5*5

  19. kanwal32
    • one year ago
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    but amswer is given as 404

  20. kanwal32
    • one year ago
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    answer

  21. kanwal32
    • one year ago
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    @nincompoop

  22. kanwal32
    • one year ago
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    @ganeshie8 are u there

  23. kanwal32
    • one year ago
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    @Abhisar

  24. Sachintha
    • one year ago
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    Can it be done using permutations?

  25. kanwal32
    • one year ago
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    yes it is a permutation and combination ques

  26. Sachintha
    • one year ago
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    Why have you omitted zero? It should be included. Isn't it @ganeshie8 ?

  27. ganeshie8
    • one year ago
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    \(4*5*5*1\) is the correct answer for the main question your textbook is wrong

  28. kanwal32
    • one year ago
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    i was thinking so are u sure

  29. ganeshie8
    • one year ago
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    also \(4*5*5*5\) is the correct answer for your later question your textbook is wrong again, just make sure you're looking at the correct chapter for answers

  30. kanwal32
    • one year ago
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    but i dont think so

  31. Sachintha
    • one year ago
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    Got it. First number shouldn't include zero. I am dumb. :D

  32. ganeshie8
    • one year ago
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    is there a reason you don't think so other than the textbook answer

  33. kanwal32
    • one year ago
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    cause there are three parts of the question and the first part is right

  34. ganeshie8
    • one year ago
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    whats the first part

  35. kanwal32
    • one year ago
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    no mcq

  36. kanwal32
    • one year ago
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    repetiton not allowed

  37. ganeshie8
    • one year ago
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    did you get 24 for that ?

  38. kanwal32
    • one year ago
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    |dw:1434109791357:dw|

  39. kanwal32
    • one year ago
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    96

  40. kanwal32
    • one year ago
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    |dw:1434109879582:dw|

  41. kanwal32
    • one year ago
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    |dw:1434109911990:dw|

  42. kanwal32
    • one year ago
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    repetition not allowed

  43. kanwal32
    • one year ago
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    @ganeshie8 can u ask for help from somebody who is good at premutation because i think the textbook is right

  44. ganeshie8
    • one year ago
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    |dw:1434110056441:dw|

  45. kanwal32
    • one year ago
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    |dw:1434110134743:dw|