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mathmath333

  • one year ago

Their is a question paper consisting of 15 questions . Each question has an internal choice of 2 options . In how many ways can a student attempt one or more questions of the given fifteen questions in the paper ?

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  1. mathmath333
    • one year ago
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    \(\large \color{black}{\begin{align} & \normalsize \text{Their is a question paper consisting of 15 questions .}\hspace{.33em}\\~\\ & \normalsize \text{Each question has an internal choice of 2 options .}\hspace{.33em}\\~\\ & \normalsize \text{In how many ways can a student attempt one or more}\hspace{.33em}\\~\\ & \normalsize \text{questions of the given fifteen questions in the paper ?}\hspace{.33em}\\~\\ & a.)\ 3^{7} \hspace{.33em}\\~\\ & b.)\ 3^{8} \hspace{.33em}\\~\\ & c.)\ 3^{15} \hspace{.33em}\\~\\ & d.)\ 3^{15}-1 \hspace{.33em}\\~\\ \end{align}}\)

  2. anonymous
    • one year ago
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    d

  3. mathmath333
    • one year ago
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    yea correct

  4. mathmath333
    • one year ago
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    how did u got that

  5. anonymous
    • one year ago
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    15+2-1=17 :)

  6. mathmath333
    • one year ago
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    what is that ?

  7. anonymous
    • one year ago
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    right away looking at the question and the answers I could tell which is which, all i did was add 15 and 2 and I saw that none of them were close to it besides D so i added 3^15-1 and got 17.

  8. mathmath333
    • one year ago
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    ur IQ seems higher than me

  9. anonymous
    • one year ago
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    Lol, says the mathlete.

  10. ganeshie8
    • one year ago
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    +1 for attempt

  11. mathmath333
    • one year ago
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    +2

  12. ganeshie8
    • one year ago
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    so there are 15 questions, how many choices do you have with each question ?

  13. mathmath333
    • one year ago
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    2

  14. ganeshie8
    • one year ago
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    think again

  15. mathmath333
    • one year ago
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    "each question has 2 choice"

  16. ganeshie8
    • one year ago
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    remember there is also a choice of attempting the question you may choose not to attempt a question

  17. mathmath333
    • one year ago
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    3

  18. imqwerty
    • one year ago
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    :P

  19. mathmath333
    • one year ago
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    interval

  20. imqwerty
    • one year ago
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    So did u get the answer now?

  21. mathmath333
    • one year ago
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    no

  22. imqwerty
    • one year ago
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    the kid can attempt the a question in 3 ways ok till now :)

  23. imqwerty
    • one year ago
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    Nd then hes has to do 15 questions so number of ways of doing it=3x3x3x....fifteen times

  24. imqwerty
    • one year ago
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    But then there is a case where the kid leaves the paper empty :) so we give him a - 1 cause we will not consider that he attempted the paper. So we get the answer - 3^15-1

  25. mathmath333
    • one year ago
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    ok

  26. imqwerty
    • one year ago
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    What is the full form of O.K?

  27. mathmath333
    • one year ago
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    good question

  28. mathmath333
    • one year ago
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    what is the full form of IMQ

  29. freckles
    • one year ago
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    okay

  30. freckles
    • one year ago
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    that made sense in your justification of taking one away from the 3^(15) you know because if he doesn't answer any of them then it is not really consider an attempt but I have seen people attempt tests and write nothing on it except a drawing :p

  31. freckles
    • one year ago
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    I don't know what IMQ stands for

  32. imqwerty
    • one year ago
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    :)

  33. freckles
    • one year ago
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    huh I always thought okay was the proper word for slang ok. But ok is actually okay. Like I think they use the word ok more actually. And ok is consider its full form. It just also has different forms that are used such as okay.

  34. mathmath333
    • one year ago
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    IMQ-> imquerty->@imqwerty

  35. imqwerty
    • one year ago
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    :O

  36. freckles
    • one year ago
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    ah

  37. mathmath333
    • one year ago
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    lol

  38. freckles
    • one year ago
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    I just realize I completely missed something in your question @mathmath333 oh you know what they thingy does say how can the person attempt one or more questions anyways so that part wasn't a guessing thing if it said how can the person attempt 0 or more questions then it would have been 3^(15)

  39. mathmath333
    • one year ago
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    yes i got that

  40. imqwerty
    • one year ago
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    :) how to get slim in jst a week? . The answer is simple :) Jst turn ur head left nd then right then left nd so whenever u r given food

  41. mathmath333
    • one year ago
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    what is that ^

  42. freckles
    • one year ago
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    does doing that much turning cause you to lose that much calories

  43. mathmath333
    • one year ago
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    trolling lol

  44. imqwerty
    • one year ago
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    Nope :) It is nt like that

  45. imqwerty
    • one year ago
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    Is it trolling or troling :)

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