AP EAMCET · Maths · Permutation Combination
What is the rank of the word "MOTHER" when all possible words are formed using all its letters and arranged as in a dictionary?
- A \(308\)
- B \(309\)
- C \(291\)
- D \(307\)
Answer & Solution
Correct Answer
(B) \(309\)
Step-by-step Solution
Detailed explanation
Total words \(=6 \mathrm{i}=720\) Number of words before starting with 'M' \(=2 \times 5 i=2 \times 120=240\) Number of words starts with \(\mathrm{M}\) and second letterbeore \({ }^{\prime} \mathrm{o}^{\prime}=2 \mathrm{x} 4 \mathrm{i}=48\) Number of words with first two…
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