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Question

After reading 79 of a book, 40 pages are left. How many pages are there in the book ?

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Solution

Let number of pages =1

Then no. of pages read = 79

and no. of pages left = 179=979=29

If 29 pages are left then total number of pages = 1

and 1 page is left then total number of pages = 1÷29=1×92

and if 40 pages are left then total number of pages = 92×40=3602=180 Ans.


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