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P and Q together can complete a work in 20 days. If Q alone can complete the work in 25 days, then in how many days P alone can complete the same work ? |
25 days 100 days 20 days 50 days |
100 days |
Time taken by P alone to complete the work = $\frac{total\; work}{efficiency}$ = $\frac{100}{1}$ = 100 days
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