ALGEBRA

The colors red, orange, green, blue, indigo, and violet are written on slips of paper and placed in a hat. What is the probability that the slips will be chosen in the order of the colors of a rainbow (the order listed above)

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  1. The colours can be arranged in 6! or 720 ways.
    The above order is one of these.

    So the prob of that particular order is 1/720

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    posted by Reiny
  2. my book says 1/5040
    could you tell me how to get it

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    posted by Student
  3. I think you may have forgotten one of the colors...yellow. There are 7 colors in the rainbow, so it would be 7! or 7x6x5x4x3x2x1 which would give you 5040.

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    posted by msp
  4. youre my new bestfriend
    thanks msp!

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    posted by Student

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