Published by:
CGP EDU Academic Team
Published on: August 14, 2026
If letters of the word REGULATIONS are randomly arranged, then the probability that there are exactly four letters between R and S is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Total cases = 11!
Number of favorable cases =2!x 9 C 4 x4!x6!
Hence, required probability 
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