Question

A boy read 2/7 th of a book on one day and 4/5 th of the remainder on another day if there were 12pages unread. How many pages in the book

Answer 1

Answer:

Step-by-step explanation:

Hey!

Let the total number of pages be x.

First day=2/7of x = 2/7*x= 2x/7.

Remaining pages= x-2x/7 =5x/7.

Another day= 4/5 of 5x/7 = 4x/7

Remaining pages= 5x/7 - 4x/7 = x/7.

Also, Remaining pages= 12.

So, x/7=12.

x= 12*7=84pages.

The book contains 84 pages.

Hope it helps.