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8 Men Can Do a Piece of Work in 9 Days. in How Many Days Will 6 Men Do It?

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Question

8 men can do a piece of work in 9 days. In how many days will 6 men do it?

 
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Solution

\[\text{ It is given that 8 men can complete a job in 9 days }  . \]
\[ \therefore \text{ Time taken by 1 man to complete the same job }  = \left( 8 \times 9 \right) = 72 \text{ days } \]
\[ \therefore \text{ Time taken by 6 men to complete the same job } = \frac{72}{6} = 12 \text{ days } \]

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Chapter 11: Time and Work - Exercise 11.1 [Page 10]

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RD Sharma Mathematics [English] Class 8
Chapter 11 Time and Work
Exercise 11.1 | Q 17 | Page 10

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