If we consider the permutation of 7 numbers then what is the order of (1457)(236)

• Question is to find the order/rank of 1457236...
  thus
  1 2 _ _ _ _ _ =5!=120
  1 3 _ _ _ _ _ =5!=120
  1 4 2 _ _ _ _ =4!= 24
  1 4 3 _ _ _ _ =4!= 24
  1 4 5 2 _ _ _ =3!= 6
  1 4 5 3 _ _ _ =3!= 6
  1 4 5 6 _ _ _ =3!= 6
  hence next series will be
  1 4 5 7 2 3 6
  Thus it is 120+120+24+24+6+6+6=306
  and hence 1 4 5 7 2 3 6 will be 307th
  
• 11 years agoHelpfull: Yes(7) No(2)
• 307th position
  huh?
  
• 11 years agoHelpfull: Yes(0) No(2)
• anyone plzz explain..
  
• 11 years agoHelpfull: Yes(0) No(0)
• yes divya u r rght....
  here they r asked to fnd the rank....lets go through...firstly
  here firstly take 1_ _ _ _ _ _ _=6!...but series starts with 1 4 ____,so the given rank is with in this range...i.e,sub division of this so,internally check for....1 2_ _ _ _ _=5!=120
  .....
  .....same as divya said just like dictionary order...for example
  u finds 1000 words starting with a_ _ _ _......but the words with a n __ ___
  is with in that 1000 only na....
  
• 11 years agoHelpfull: Yes(0) No(1)