after reading
[tex] \frac{7}{9} [/tex]
of a book 40 pages are left how many pages are there in a book
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after reading
[tex] \frac{7}{9} [/tex]
of a book 40 pages are left how many pages are there in a book
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7x/9+40=x
x-7x/9=40
2x/9=40
x=40×9/2
x=180
pages in book 180
Let the total number of pages be x.
Now 7x/9 pages are read.
Left pages = x - 7x/9 = 2x/9
also 2x/9 = 40
x = 180
Total pages = 180 pages.
Hope this helps u..