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Time and Work

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Multiple Choice

A piece of work, started with 5 working men, takes 20 days to be completed when one man is added per day. Find the same work will be finished in how many days if 12 men work regularly?

  1. 210 days
  2. 425/12 days
  3. 410 days
  4. 205/6 days
  5. 425 days
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