First of all, let us assume that the total number of pages in the book is represented as x.
According to the question, 2/9th part of the book is read on Friday and 1/3rd of that book is read on Saturday.
Therefore, Amount of the book read by Saturday is (2x/9)+(x/3)=5x/9.
Now, if the entire book is considered as one unit, then the remaining amount of the book to be read is (1-5x/9)=4x/9.
According to the question, 4x/9=160------(i)
Solving (i) we get x=360.
Therefore, total number of pages in the book is 360(Ans) and,
The number of pages read on Friday is (2/9)* 360=80 pages(Ans) and,
The number of pages read on Saturday is (1/3)* 360=120 pages(Ans).
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