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P, Q, R, S, and T sitting in a row facing northwards but not necessarily in the same order. Q sits third to the left of T, there is only one person sitting between P and R, P and T cannot sit on any of the extreme ends. From the left end at which number R

There are five people P, Q, R, S, and T sitting in a row facing northwards but not necessarily in the same order. Q sits third to the left of T, there is only one person sitting between P and R, P and

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How many 5 letter words can be formed using the letters of the word ‘GLASS’?

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