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In how many ways the letters …

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In how many ways the letters of the word PERMUTATIONS can be arranged such that there will be 4 letters between P and S
  • 1 answers

Amit Prasad 7 years, 3 months ago

The last possiblity of p is 1 2 3 4 5 6 7 & last possiblity of s is 6 7 8 9 10 11 12 therefore 7+7=14 So, 10!/2! × 14 25401600
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