Question

a girl can finish a boom in 30 days , if she reads 18 pages of it everyday how many days will what take to finish if she reads 15pages of it everyday​

Answer 1

☆Question☆

A girl can finish a book in 30 days , if she reads 18 pages of it everyday how many days will what take to finish if she reads 15 pages of it everyday.

☆Understanding first☆

There is a girl who can finish a book in 30 days, if and only she reads 18 pages per day.So, it has asked if per day she reads 15 pages , then how many days will it take. so, Let's solve it

☆GivEn☆

In 30 days she can finish a book if per day she reads 18 pages.

☆Find☆

If she reads 15 pages per day then how many days will she take = ?

☆Solution☆

In 1 day she reads 18 pages = 1 × 18 → 18.

In 2 days she reads 36 pages = 2 × 18 → 36.

In 3 days she reads 54 pages = 3 × 18 → 54 .

Then,In 30 days she reads 540 pages = 30 × 18 → 540.

•°• We got that the book has 540 total pages

Then, If she read 15 pages per day so, It will become 540÷15 , because the total pages → 540 and per day she reads→ 15 pages.

So, Let's divide

$\rightarrow \sf \bf \cancel\dfrac{540}{15} = 36$

•°•Total days taken if she reads 15 pages per day → 36 days

Verification

If there are 540 pages of that book , and she reads 18 pages per day Then, If we divide 540 by 18 then the total number of days we get,540÷ 18 → 30 days

$\rightarrow{ \sf{ \bf \cancel \dfrac{540}{18}}} = 30$