how many zeros are there from 1 to 10000?

• 10 20 30 40 50 60 70 80 90=no of zero=9
  means b4 100 total no of zero=9
  110 120 130 140 150 160 170 180 190 =no of zero=9
  means after 100 and before 200 no zero=9
  similarly ..no of zero between 200 and 300 =9
  and so on...
  no of zeros between 900 and 1000=9
  and some zeros at 100 200 300........900
  so total no of zero before 1000=10*9+9*2=12*9=108
  means before 1000 no of zeros=108 so before 2000=108
  similarly....
  ..............
  before 10000 no of zeros=108
  and some at 1000 2000 3000 .......9000 and one 10000
  so total no of zeros became=108*9+9*3+4=972+27+4=1003
  1003 is the ans
• 13 years agoHelpfull: Yes(2) No(17)
• From 1-100=11
  from1-1000=11*10+1=111
  from 1-10000=111*10+1=1111
  so the No. Of zero from 1-10000 is 1111
• 8 years agoHelpfull: Yes(0) No(0)