Question
Question: If the letters of the word ‘KRISNA’ are arranged in all possible ways and these words are written ou...
If the letters of the word ‘KRISNA’ are arranged in all possible ways and these words are written out as in a dictionary, then the rank of the word ‘KRISNA’ is
A
324
B
341
C
359
D
None of these
Answer
324
Explanation
Solution
Words starting from A are 5 ! = 120; Words starting from I are 5 ! = 120
Words starting from KA are 4 ! = 24; Words starting from KI are 4 ! = 24
Words starting from KN are 4 ! = 24; Words starting from KRA are 3 ! = 6
Words starting from KRIA are 2 ! = 2; Words starting from KRIN are 2 ! = 2
Words starting from KRIS are 1 ! = 1 Words starting from KRISNA are 1 ! = 1
Hence rank of the word KRISNA is 324