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Q: A and B do a piece of work in 12 days and 18 days respectively. They worked together for 4 days after which B was replaced by C and remaining work was completed by A and C in next 4 days. In how many days will C alone complete 50% of the same work?
  • A. 21
  • B. 18
  • C. 24
  • D. 36
Correct Answer: Option B -
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Explanations:

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