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Math Help - Need Help on this Quiz

  1. #1
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    Need Help on this Quiz

    There are two bicycle riders travelling towards each other, each travelling at 10Km/hr and the distance between them is 60km. There is also a butterfly that is flying back and forth at 20km/hr between the two riders until it is finally crushed when both riders meet at the mid-point.
    Question:
    • what is the time duration of the butterflies second last lag (i.e. flying from rider 1 to rider 2)?
    • what is the time duration of the butterflies last lag (i.e. flying back to rider 1 where it meets its DEATH)
    • Is there a simple formula of working this out?
    Appreciate the help
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by taval79 View Post
    There are two bicycle riders travelling towards each other, each travelling at 10Km/hr and the distance between them is 60km. There is also a butterfly that is flying back and forth at 20km/hr between the two riders until it is finally crushed when both riders meet at the mid-point.

    Question:
    • what is the time duration of the butterflies second last lag (i.e. flying from rider 1 to rider 2)?
    • what is the time duration of the butterflies last lag (i.e. flying back to rider 1 where it meets its DEATH)
    • Is there a simple formula of working this out?
    Appreciate the help
    Is there a last leg?

    RonL
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