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6 men can complete the electric fitting in a building in 7 days. How many days will it take if 21 men do the job? - Mathematics

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ConceptTime and Work

Question

6 men can complete the electric fitting in a building in 7 days. How many days will it take if 21 men do the job?

Solution

\[\text{ It is given that 6 men can complete a job in 7 days } . \]
\[ \therefore \text{ Time taken by 1 man to complete the same job } = \left( 6 \times 7 \right) = 42 \text{ days } \]
\[ \therefore \text{ Time taken by 21 men to complete the same job }  = \frac{42}{21} = 2 \text { days } \] 

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Solution 6 men can complete the electric fitting in a building in 7 days. How many days will it take if 21 men do the job? Concept: Time and Work.
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