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20 July, 08:52

John loves to swim and can complete 10 laps in 4 minutes. How long would it take him to swim 25 laps?

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Answers (2)
  1. 20 July, 08:55
    0
    62.5 minutes

    Step-by-step explanation:

    10 divided by 4

    then 2.5 times 25 gives the answer
  2. 20 July, 08:57
    0
    10 minutes

    Step-by-step explanation:

    You can use a proportion.

    10 laps is to 4 minutes as 25 laps is to x minutes.

    10/4 = 25/x

    Reduce the left fraction.

    5/2 = 25/x

    Cross multiply.

    5x = 50

    x = 10

    Answer: 10 minutes
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