Question

If letters of the word ‘KUBER’ are written in all possible orders and arranged as in a dictionary, then rank of the word ‘KUBER’ will be

(A)   67

(B)  68 

(C)  65 

(D)  69

Answer 1

Correct   option (A)

Alphabetical order of these letters is B, E, K, R, U.

Total words starting with B = 4! = 24

Total words starting with E = 4! = 24 

Total words starting with KB = 3! = 6 

Total words starting with KE = 3! = 6 

Total words starting with KR = 3! = 6

Next word will be KUBER.

Thus rank of the word KUBER = 24 + 24 + 18 + 1 = 67