10 How many times is the digit 8 used in writing all numbers from 600 to 900 ?


1) 100
2) 120
3) 140
4) 160

• from 600 to 699 => count from 0 to 99 = 20 times 8's
  from 700 to 799 => 20 times 8's
  from 800 to 900 => 100+20=120
  
  total = 20+20+120 = 160
  
  4) 160
• 10 years agoHelpfull: Yes(64) No(0)
• 160
  b/w 600 & 700 20 b/w 700 800 20 & in 800 120 total 160
• 10 years agoHelpfull: Yes(5) No(0)
• For every 100 digits every no in last two digits is present 20 times
  So from 600-700 no of 8s=20
  From 800-900 no of 8s=20
  From 801-899 no of 8s=20
  Again considering hundred's place we get no of 8 from 800-899 = 100
  So total no of 8s= 160
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• 100th place-100
  10th place-30
  unit place-30
  total --160
• 9 years agoHelpfull: Yes(0) No(0)
• 160
  between 600-700 8 is used 20 times ,between 700-799 8 is used 20 times and frm 800-900 8 is used 120 times
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• 140 is a ans because
  600 to 700 =20 times
  700 to 800 =20times
  800 to 900=100 times
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