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Q can do the work in 6 days. ( Time taken by P will be more than Q i.e their time ratio will be 150:100 and this is to 9:x, or 150:100::9:X which will give value of X as 6)

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Q: P can do a piece of work in 9 days Q is 50 percent more efficient than P The number of days it takes Q to do the same piece of work is?
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