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1 October, 16:40

A ship anchored in a port has a ladder which hangs over the side. The length of the ladder is 200cm, the distance between each rung in 20cm and the bottom rung touches the water. The tide rises at a rate of 10cm an hour. When will the water reach the fifth rung

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  1. 1 October, 18:13
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    The answer to your question is 8 h

    Step-by-step explanation:

    Data

    length of the ladder = 200 cm

    distance between each rung = 20 cm

    rate = 10 cm/h

    fifth rung = ?

    Process

    1. - Calculate the total distance the tide must rise

    distance = 20 cm x 4

    = 80 cm because the first rung touches the water

    2. - Calculate the time

    rate = distance / time

    -Solve for time

    time = distance / rate

    -Substitution

    time = 80 cm / 10cm/h

    -result

    time = 8 h
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