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5 May, 15:03

A proofreader can read 40 pages in one hour. How many pages can this proofreader read in 90 minutes?

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Answers (2)
  1. 5 May, 15:55
    0
    40 pages = 60 minutes

    20 pages = 30 minutes

    60 pages = 90 minutes
  2. 5 May, 17:04
    0
    One hour is equal to 60 minutes. That gives you a fraction of 40 pages/60 minutes.

    You don't know how many pages they can read in 90 minutes, so you would do

    x pages/90 minutes.

    The equation you would set up is 40/60 = x/90.

    After cross multiplying you get 60x = 3600. Divide both sides by 60 to isloate the x, and you end up with x = 60.

    A proofreader who can read 40 pages in one hour (60 minutes) can reading 60 pages in 90 minutes.
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