Published by:
CGP EDU Academic Team
Published on: August 14, 2026
All five letter words are made using all the letters A, B, C, D, E and arranged as in an
English dictionary with serial numbers. Let the word at serial number 
be denoted by 
. Let the probability 
of choosing the word 
satisfy 
.If 
, then 
is equal to:
Text Solution
Verified by ExpertsThe correct answer is:
183
(183)
Let 
Rank of CDBEA
CD B A E = = 1
CD BE A=1
64
So, 
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