Question

If the letters of the word VERMA are arranged in all possible ways and these words are written out as in a dictionary, then the rank of the word VERMA is :
A) 108
B) 117
C) 810
D) 180

Answer 1

VERMA
arrange it based on alphabetical order
AEMRV
First letter starts with V
and in rearranged one before V there r 4 letters
so
4×4!
similarly next letter is E
and in rearranged one before E only A is there
so
1×3!
then after
2×2!
1×1!
0
add all these
4×4!+1×3!+2×2!+1×1!+0
96+6+4+1
107