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If 3 people can complete a task in 12 days, how many days will it take for 6 people to complete the same task working at the same rate?

Question and options

If 3 people can complete a task in 12 days, how many days will it take for 6 people to complete the same task working at the same rate?
  1. 3 days
  2. 6 days
  3. 9 days
  4. 4 days

Answer and explanation

Correct answer: B - 6 days
Work = 3×12=363 \times 12 = 36 person-days. With 6 people it takes 366=6\frac{36}{6} = 6 days.

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  • CUSAT CAT Five-Year LL.B.

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