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Q:

A can do $$1\over 3$$ of a work in 30 days. B can do $$2\over 5$$ of the same work in 24 days. They worked together for 20 days. C completed the remaining work in 8 days. Working together A, B and C will complete the same work in:

  • 1
    15 days
  • 2
    10 days
  • 3
    18 days
  • 4
    12 days
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Answer : 4. "12 days"

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