TS EAMCET · Maths · Permutation Combination
The number of different permutations of letters that can be formed by taking 4 letters at a time from the letters of the word 'REPETITION' is
- A \(210\)
- B \(720\)
- C \(1398\)
- D \(5040\)
Answer & Solution
Correct Answer
(C) \(1398\)
Step-by-step Solution
Detailed explanation
In given word REPETITION, the letters \(\mathrm{R}, \mathrm{P}, \mathrm{O}\) and \(\mathrm{N}\) come one time while the letters \(\mathrm{E}, \mathrm{T}\) and \(\mathrm{I}\) come two times. Now, the number of different permutations of letters that can be formed by taking 4…
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