rakesh read 2÷5 of a book on Thursday 1÷3 of the remaining on Friday and the rest 50 pages on Saturday. find the no of pages of the book ?
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Let there be X pages in the book.
Monday: She read ( 3/7 ) of the book or ( 3/7 )X pages. That is she has yet to read (1 - 3/7)X or
= ( 4/7 )X pages.
Tuesday: She read (1/ 4) of remainder or
( 1/4 )*( X - (3/7)X ) or ( 1/4 ) * ( 4/7 ) * ( X ) or
= ( X/7 ) (= amount read)
This means that because she has now read one quarter of the remainder, 9she has yet to read (3/4)*(4/7)X or (3/7)X pages.
Wednesday onwards: 75 more pages to read.
Therefore (3/7)X = 75 pages
Therefore X = ( 75 )*( 7 )/( 3 )
Therefore X = 25 * 7 = 175 pages
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rakesh read 2÷5 of a book on Thursday 1÷3 of the remaining on Friday and the rest 50 pages on Saturday. find the no of pages of the book ?
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