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A can do a piece of work in 13 days and B can do it in 21 days. In how many days will they finish it working together?
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A can do a piece of work in 13 days and B can do it in 21 days. In how many days will they finish it working together?
A and B together can complete a work in 10 days. A alone can complete it in 15 days. In how many days can B alone complete the work?
A and B together can complete a work in 4 days. A alone can complete it in 8 days. In how many days can B alone complete the work?
A and B together can complete a work in 14 days. A alone can complete it in 16 days. In how many days can B alone complete the work?
A can finish a work in 8 days and B in 28 days. They work together for 4 days and then A leaves. In how many more days will B finish the remaining work?