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Pro Problems > Math > Algebra > Equations > Word Problems > Linear > Rate and TimeFast Reader
I have four books, each with n pages, and I can read them all in four hours.
I have four more books, each with each 120 fewer pages than my original four books. I can read them all in three hours.
I have five more books, each with 120 more pages than my original four books. How long would it take me to read all five books?
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