If 5 workers, working at the same rate, complete a job in 12 days, how many days will 10 workers take to complete the same job?
6 days
The total work is fixed, so the number of workers and the days taken are inversely proportional.
Total effort \(=5\ \text{workers}\times12\ \text{days}=60\ \text{worker-days}\).
With 10 workers, days needed \(=\dfrac{60}{10}=6\ \text{days}\).
Doubling the workforce halves the time, which confirms the result.
Hence, the answer is 6 days.
Similar Questions
Three workers, X, Y, and Z, can complete a certain job in 10 days, 12 days, and 15 days, respectively. Determine the number of days required for them to complete the job when they work together.
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