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

100

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200

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300

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400

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Solution

The correct option is A $200$
$(1 - \frac{3}{5}) \times$ total pages = 80
$∴$ number of pages = $80 \times \frac{5}{2}$
= 200

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