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Class 11 Mathematics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

MathematicsA four-letter code is formed from (P,Q,R,S,T). Repetition is not allowed and (P) and (Q) must not be adjacent. How many codes are possible?Class 11Permutations and CombinationsFundamental principle of countingHardMathematicsIn a (6)-place binary string only (0) and (1) are used. The first and last places must be (1). How many strings are possible?Class 11Permutations and CombinationsFundamental principle of countingEasyMathematicsIn a 3-letter code, both A and B are available, but the first place must be A. There are 6 letters in total and repetition is not allowed. How many codes are possible?Class 11Permutations and CombinationsFundamental principle of countingMedium

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