how many 4 digit no. that don't contain 3 or 6 there

• in a 4 digit no.:unit place can b filled in 8 ways(leaving 3 and 6)
  tens place in 8 ways
  hund. place in 8ways
  and thousand place in 7 ways(leaving 0,6,3)
  total ways=7*8*8*8
• 11 years agoHelpfull: Yes(0) No(0)