a book contains 720pages. a boy read 5/24 of the book on one day and 7/8 the book on the second day. what portion of the book is still left.
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Hunar S. asked • 06/03/16
A boy read 3/8th of the book on day and 4/5th of the remainder on another day . If there were 30 pages unread , how many pages did the book contain ?
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Bryan P. answered • 06/03/16
Math, Science & Test Prep
Hunar,
If 3/8 of the book were read the first day, then 5/8 remained.
4/5 of 5/8 = 4/5 * 5/8 = 4/8
So now 3/8 + 4/8 = 7/8 have been read.
The 30 pages that remain must be 1/8 of the total.
So if p is the total number of pages:
p/8 = 30
p = 240 pages
hope that helps.
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