Q.

The letters of the word "UDAYPUR" are written in all possible ways with or without meaning and these words are arranged as in a dictionary. The rank of the word "UDAYPUR" is                      [2026]

1 1579  
2 1581  
3 1580  
4 1578  

Ans.

(3)

ADIPRUU

A→6!2!=360

D→6!2!=360

P→6!2!=360

R→6!2!=360

UA→5!=120

UDAP→3!=6

UDAR→3!=6

UDAU→3!=6

UDAYPRU→1

UDAYPUR→1

Total=1580