Question

After reading 7/9of a book,40pages are left.how many pages are there in the book.
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Answer 1

Answer:

Let's take the number of total pages as y.

That would mean, You read 7/9 of y.

And after that, there were 40 pages left.

That means,

y - $\frac{7}{9}$y = 40

Taking L.C.M,

$\frac{9}{9}$y - $\frac{7}{9}$y = 40

$\frac{2}{9}$y = 40

2y = 9 x 40

2y = 360

y = 180.

That means the total number of pages in that book where 180.

Hope it Helps,

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