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During the school holidays, Chris read 312 pages of a book at first. He read the remaining pages in 20 days, with the same number of pages each day. During these 20 days, he read 1/12 of the book in 6 days. How many pages did he read in the 6 days?

 May 25, 2021
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During the school holidays, Chris read 312 pages of a book at first. He read the remaining pages in 20 days, with the same number of pages each day. During these 20 days, he read 1/12 of the book in 6 days. How many pages did he read in the 6 days?

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The book has 312 + x pages       

 

6 : 1/12 = 20 : x          x = 5/18        (x => pages read in 20 days)

 

13/18 = 312 pages

 

y : 1/12 = 312 : 13/18           (y => pages read in 6 days)

 

y = 36 

 

Chris read 36 pages in 6 days, 120 pages in 20 days, and the book has 432 pages.

 May 25, 2021
edited by jugoslav  May 25, 2021

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