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30 July, 04:17

If James can swim 10 laps in 23 minutes, what would be his expected time for 15 laps?

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Answers (2)
  1. 30 July, 04:45
    0
    Correct, the person is correct
  2. 30 July, 07:22
    0
    You can use a proportion.

    10 laps is to 23 minutes as 15 laps is to x minutes

    10/23 = 15/x

    10x = 15 * 23

    10x = 345

    x = 34.5

    Answer: 34.5 minutes
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