A and B can do a piece of work in 12 days, B and C In 15 days, C and A in 20 days.
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A and B can do a piece of work in 12 days, B and C In 15 days, C and A in 20 days. How long would it take for 'C to do the same work alone?
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Answer: C. C) 50 days
The correct option is C: '50 days'.