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Time and Work
A can do a piece of work in 10 days and B can do it in 12 days. They work together for 3 days. Then B leaves and A alone continues. 2 days after that C joins and the work is completed in 2 days more. In how many days can C do it, if he works alone ?
30 days
50 days
40 days
60 days
Correct Answer:
40 days
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