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    cmkwanazi's Avatar
    cmkwanazi Posts: 1, Reputation: 1
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    #1

    Oct 3, 2012, 09:19 AM
    how long will it take for the message to reach your friend?
    The fastest fish, the sailfish, can swim 1.2 x 100 km/h. Suppose you have a friend who lives on an island 16 km away from the shore. If you send a message using a sailfish as a messenger, how long will it take for the message to reach your friend?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Oct 3, 2012, 10:22 AM
    The way the speed was given is a bit weird... but that doesn't change the fact that:

    Speed = Distance / Time

    Rearranging gives you:

    Time = Distance / Speed

    This should be easy enough to work out.

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