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4 January, 20:22

Mr frost typed for 12 minutes at a constant rate of 50 words per minute. Mrs. grey typed the same number of words at a constant rate of60 words per minute how many minutes did it take Mrs. Grey to type the same amount as mr frost?

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  1. 4 January, 20:36
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    Mr Frost typed 600 words in 12 minutes (50*12)

    so to find out how fast it took mrs. grey to type 600 words you just 600:60 (because that's how many words a minute Mrs. grey types)

    so the answer would be 10 minutes
  2. 4 January, 20:47
    0
    Let x = Mrs. Grey's time.

    Set up. 12 (50) = x (60) Solve for x. x=10. Check. 12 (50) = 10 (60)
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