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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।

Mathematics(5)-character passwords are formed from (7) symbols without repetition. Which count is correct?Class 11Permutations and CombinationsDerivations of formulas and their connectionsHardMathematics(5)-character passwords are formed from (7) symbols with repetition allowed. Why is the count (7^5)?Class 11Permutations and CombinationsDerivations of formulas and their connectionsHardMathematicsA password has (6) positions. Exactly (3) letters and (3) digits are used from (5) letters and (5) digits without repetition. The first and last positions cannot both be digits. How many passwords are possible?Class 11Permutations and CombinationsFundamental principle of countingExpertMathematicsA 4-place password uses 5 available symbols. The first and second places must contain different symbols, but repetition is allowed in the other places. How many passwords are possible?Class 11Permutations and CombinationsFundamental principle of countingMedium

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