if all possible 4 digits numbers are formed using the digits 5,6,7,8 without repetition and arranged in ascending order of magnitude then the position of the number 7685.
a) 16
b) 17
c) 18
d) 15

• 5---=6ways
  6---=6 ways
  75--=2ways
  765-=1way
  768-=1way
  ans:16
• 10 years agoHelpfull: Yes(0) No(1)