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Time & Work
Time, Distance and Speed

If A can do a piece of work in 12 days and B can do it in 18 days, how long will it take for both A and B to complete the work together?

A. 7.2 DAYS
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C can finish a work in 20 days, while D can finish it in 30 days. If they work together, how long will it take to finish the work?

B. 15 DAYS
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A can do a work in 15 days, B can do it in 10 days, and C can do it in 6 days. How long will it take for all three to complete the work together?

B. 3 DAYS
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If a work can be completed by 8 workers in 12 days, how many workers are needed to complete the same work in 8 days?

B. 12 WORKERS
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A and B can finish a work in 12 days and 15 days respectively. If they work together for 4 days, how much of the work is left?

C. 1/3
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