Mathematics - Permutation & Combination Question with Solution | TestHub

MathematicsPermutation & CombinationnPr & nCrEasy2 minPYQ_2016

MathematicsEasysingle choice

All the words that can be formed using alphabets A, $H, L, U$ and $R$ are written as in a dictionary (no alphabet is repeated). Rank of the word RAHUL is

Options:

Answer:

Solution:

No. of words starting with $A$ are $4! = 24$ No. of words starting with $H$ are $4! = 24$ No. of words starting with $L$ are $4! = 24$ These account for 72 words Next word is RAHLU and the $7 4^{th}$ word RAHUL

Stream:BITSATSubject:MathematicsTopic:Permutation & CombinationSubtopic:nPr & nCr

⏱ 2mℹ️ Source: PYQ_2016

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