Mathematics - Permutation & Combination Question with Solution | TestHub

MathematicsPermutation & CombinationnPr & nCrMedium2 minPYQ_2005

MathematicsMediumsingle choice

If the letters of word SACHIN are arranged in all possible ways and these words are written out as in dictionary, then the word SACHIN appears at serial number

Options:

Answer:

Solution:

Alphabetical order is A, C, H, I, N, S No. of words starting with $A - 5$ ! No. of words starting with $C - 5$ ! No. of words starting with $H - 5$ ! No. of words starting with I $- 5$ ! No. of words starting with $N - 5$ ! $SACHIN - 1$ $601$

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

⏱ 2mℹ️ Source: PYQ_2005

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