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Time & Work
Time, Distance and Speed

A and B can complete a work in 24 days. If A works alone for 10 days and then B joins him, how many more days will they take to finish the work?

Answer: B. 12 days
A completes 10/24 of the work in 10 days. The remaining work is 14/24. Together, A and B can complete the work in 12 days.
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