Question

Raju reads z/3 of a book. He finds that there are still 100 pages to read. Find total number of page in the page

Answer 1

Answer:

150 pages

Step-by-step explanation:

let total pages be z

he read z/3

100 pages left

so

100+ z/3=z

100=z- z/3

100= 2z/3

z=100×3/2

z=150 pages

Answer 2

Total number of page in book is 150

Solution:

Let the total number of pages be z

Raju reads z/3 of a book

He finds that there are still 100 pages to read

Therefore,

$Pages\ left\ unread = z - \frac{z}{3} = \frac{3z - z}{3} = \frac{2z}{3}$

This is equal to 100 pages

$\frac{2z}{3} = 100\\\\2z = 300\\\\z = 150$

Thus total number of page in book is 150

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