Question

reemu read 1/5th pages of a book . If she reads further 40 pages , she would have read 7/10th pages of the book . How many pages are left to be read ?

Answer 1

Difference in the fraction of the book read:

7/10 - 1/5 = 1/2 of the books

Difference in number of pages = 40 (Given)

Find the total number of pages:

1/2 the book = 40 pages

the book = 40 x 2 = 80 pages

Find the pages left to read:

Number of pages = 80 - 40 = 40

Answer: She has 40 more pages to read

Answer 2

Thank you for asking this question. Here is your answer:

First we will assume the pages in the book be x

2/3 of x + 40 = 7/10 of x

2x/3 + 40 = 7x / 10

7x /10 - 2x/3 = 40

21x 20x / 30 = 40

x / 30 = 40

x = 1200

1200 × 7/10 = 840 pages are read

and 1200 - 840 = 360

So this means there are 360 pages left to be read.

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