Mathematics - Permutation & Combination Question with Solution | TestHub
MathematicsPermutation & CombinationnPr & nCrMedium2 minQB
MathematicsMediumsingle choice
Statement I: The number of selections of four letters from PARALLEL is 15. Statement II: The coefficient of in is 15.
Options:
Answer:
D
Solution:
The four-letter multisets from number 22, not 15. Also . The source key A and its shifted factor-pair solution are wrong here.
Stream:JEESubject:MathematicsTopic:Permutation & CombinationSubtopic:nPr & nCr
⏱ 2mℹ️ Source: QB
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