Question

After reading 5/8 of a book, 168 pages are left. How many pages are there in all in a book?

Answer 1

Answer:

There are 448 pages in the book.

Step-by-step explanation:

After reading 5/8 of a book, part left = 1 - 5/8 = 3/8

3/8 part = 168

=> 1 part = 168×8/3 = 448

So, there are 448 pages in the book.

Answer 2

Answer:

Let the total no. of pages be x

5x/8 + 168 = x

Collect like terms

x - 5x/8 = 168

Find the LCM of the denominator, and simplify

(8x -5x)/8 = 168

3x/8 = 168

Cross multiply, and you have

3x = 1344

Divide through by 3 to get the value for x

x= 1344/3

x = 448

Therefore, there are 448 pages in the book

Step-by-step explanation: