How many 6 digits can formed with 0 1 5 6 7 with zero not in first place ?
a) 1600
b) 1200
c) 3600
d) 2500

• - - - - - - six places to be filled
  since first place is not zero => 4 possible digits (1 5 6 7)
  Similarly 2nd Digit ==> 5 possiblity
  Similarly 3rd Digit ==> 5 possiblity
  Similarly 4th Digit ==> 5 possiblity
  Similarly 5th Digit ==> 5 possiblity
  Similarly 6th Digit ==> 5 possiblity
  Hence = 4*5*5*5*5*5
• 8 years agoHelpfull: Yes(7) No(0)
• Ans D)
  Here not given that about repetition so we include repetition.
  now at first place 0 should not come so 4 no. will come.
  at second place any no. can come of all five numbers...
  at third place also and so on .....
  so
  4*5*5*5*5 =2500
• 8 years agoHelpfull: Yes(2) No(8)
• Ans is 12500
  4*5*5*5*5*5
  Bu no in option
• 8 years agoHelpfull: Yes(1) No(1)
• But it has been asked 6 digit number..So 4*5*5*5*5*5=12500 is the ans
• 8 years agoHelpfull: Yes(1) No(0)
• any ans tat qus plz
  
• 8 years agoHelpfull: Yes(0) No(0)
• - - - - - - six places to be filled
  since first place is not zero => 4 possible digits (1 5 6 7)
  Similarly 2nd Digit ==> 5 possiblities
  Similarly 3rd Digit ==> 5 possiblities
  Similarly 4th Digit ==> 5 possiblities
  Similarly 5th Digit ==> 5 possiblities
  Similarly 6th Digit ==> 4 possiblities(becoz if it is '0' it is not a 6 digit num)
  Hence = 4*5*5*5*5*4
• 5 years agoHelpfull: Yes(0) No(1)