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It takes Nancy 12/3 mins to read 1 page in her social studies book. It took her 221/2 mins to complete her reading assignment. How long was the assignment let n represent the number of pages she has read

User Davidm
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Explanation:

well, we need to see how often 12/3 minutes (for one page) fits into 221/2 minutes (for all pages) :

n = 221/2 / 12/3 = (221×3) / (12×2) = 221 / (4×2) = 221/8

the book had n = 221/8 pages = 27.625 ≈ 27 pages.

as parts of a page do not make sense, we only count full pages.

User David Gardner
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