JEE Mains · Maths · STD 11 - 14. probability
Words with or without meaning are to be formed using all the letters of the word \(EXAMINATION.\) The probability that the letter \(\mathrm{M}\) appears at the fourth position in any such word is:
- A \(\frac{1}{9}\)
- B \(\frac{1}{66}\)
- C \(\frac{2}{11}\)
- D \(\frac{1}{11}\)
Answer & Solution
Correct Answer
(D) \(\frac{1}{11}\)
Step-by-step Solution
Detailed explanation
\(AAEIIMNNOTX\) Total words \(=\frac{11:}{2: 2: 21}=\mathrm{n}(\mathrm{s})\) \(\quad\quad M\) \(\underline{}\)\(\,\underline{}\)\(\,\underline{}\)\(\,\underline{}\)\(\,\underline{}\)\(\,\underline{}\)\(\,\underline{}\)\(\,\underline{}\)\(\,\underline{}\)\(\,\underline{}\)…
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