JEE Mains · Maths · STD 11 - 6. permutation and combination
If the letters of the word \(MATHS\) are permuted and all possible words so formed are arranged as in a dictionary with serial numbers, then the serial number of the word \(THAMS\) is
- A \(103\)
- B \(104\)
- C \(101\)
- D \(102\)
Answer & Solution
Correct Answer
(A) \(103\)
Step-by-step Solution
Detailed explanation
\(4 \times 4 !+1 \times 3 !+1=103\)
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