Question

Christina reads 5/7 pages of a book and still she has to read 140 pages to finish the book. How many pages are there in the book?​

Answer 1

Answer:

the book has 240 pages

5/7*140=100

100+140=240

Answer 2

There are 490 pages in the book.

Step-by-step explanation:

Let the number of pages in the book is x.

Given:

• Christina reads 5/7 pages of a book.

$= > christina \: reads \: = \frac{5}{7} x$

• Still she has to read 140 pages to finish the book.

$= > \frac{5}{7} x + 140 = x$

$= > x - \frac{5}{7} x = 140$

$= > \frac{7x - 5x}{7} = 140$

$= > \frac{2x}{7} = 140$

$= > x = 490 \: pages$

There are 490 pages in the book.