14. A person starts writing all 4 digits numbers. How many times had he written the digit 2??

• I think the answer is 3700 times.
  in units place we get 9(10)(10) = 900 times
  in tens place we get 9(10)(10) = 900 times
  in hundreds place also we get 9(10)(10) = 900 times
  in thousands place we get 10(10)(10) = 1000 times
  so total 3700 times... am i right?
• 10 years agoHelpfull: Yes(49) No(3)
• when the person use all the digits=9*10*10*10=9000
  when the person not use 2 then all digits=8*9*9*9=5832
  so when that person use 2 then=9000-5832=3168
• 10 years agoHelpfull: Yes(10) No(9)
• 900+900+900+1000=3700
• 10 years agoHelpfull: Yes(4) No(0)
• 900+900+900+1000=3700times
• 10 years agoHelpfull: Yes(4) No(1)
• 3700 times !!! :)
  
• 10 years agoHelpfull: Yes(3) No(0)
• in each 1000 numbers there are: 300 2s
  So, number of 2s between 1000 to 9999(excluding 2000 to 2999):300x8=2400
  Number of 2s between 2000 to 2999=1300
  total:2400+1300=3700
• 10 years agoHelpfull: Yes(3) No(0)
• 3700
• 10 years agoHelpfull: Yes(2) No(0)
• 3700,at unit place 900
  tens 900
  hundreds 900
  thousands 1000
  so 900+900+900+1000=3700
• 10 years agoHelpfull: Yes(2) No(0)
• Correct answer is.....3700
• 9 years agoHelpfull: Yes(1) No(0)
• 900+900-900+900+1000-900+1000-900= 3700 (socho bache log kaise ayaaaaaaaaa?????????
• 10 years agoHelpfull: Yes(0) No(8)
• Answer is .......3168
• 10 years agoHelpfull: Yes(0) No(1)