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प्रश्न
Working 8 hours a day, Ashu can copy a book in 18 days. How many hours a day should he work so as to finish the work in 12 days?
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उत्तर
\[\text{ If Ashu works for 8 hours daily, he can finish the work in 18 days .} \]
\[\text{ If he works for 1 hour daily, he can finish the work in } \left( 18 \times 8 \right) \text{ days or 144 days . } \]
\[ \therefore \text{ Number of hours he should work daily to finish the work in 12 days } = \frac{144}{12} = 12\]
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