no. of 2's between 100 to 999 by making 3 digit no.

• 280 because 100 to 200 20 2's so except 200 to 300 remaining for all 300 to 999 total 2's = 140. 2's in b/w 200 to 300 120 2's total 20+120+160=280
• 11 years agoHelpfull: Yes(15) No(2)
• 100-199 they are 20 -2 digit no
  like this in between
  300-399
  400-499
  500-599
  600-699
  700-799
  800-899
  900-999
  20*8=160
  in between 200-299 they are 120 2 appears
  120+160=280
• 11 years agoHelpfull: Yes(9) No(0)
• No of 2's between 100 and 199 =20
  Simimlarly noof 2's between 300 and 999 = 20*7=140
  No of 2's between 200 to 300 = 100( for 100th digit)+ 20 f0r tens and units digit
  => total no of 2's= 20+140+100+20= 280
• 11 years agoHelpfull: Yes(4) No(1)
• 300 ((20*10)+100)
• 11 years agoHelpfull: Yes(1) No(0)
• Ans = 280
  
  
• 11 years agoHelpfull: Yes(0) No(1)
• ans is -
  260
• 11 years agoHelpfull: Yes(0) No(0)