Question

Guru reads $\frac{3}{5}$ of a book. He finds that there are still $80$ pages left to be read. Then total number of pages in the book are

• A. $100$
• B. $200$
• C. $300$
• D. $400$

Answer 1

Answer: (B)

$200$

Guru read $\frac{3}{5}$ of a book.

Suppose book has $x$ number of pages.

And he read $\frac{3}{5}$ of $x$, which means, he read $\frac{3x}{5}$

Total remaining part of book is $x-\frac{3x}{5}=\frac{2x}{5}$

Which is given as $80$ pages.

$\Rightarrow \frac{2x}{5}=80$

$\Rightarrow x=200$

$\therefore$ Total number of pages in book is $200$.