how many 2 are there in between 1000 to 9999

• If you fix 2 in units place, the remaining places can be filled in 9, 10, 10 ways. We can only fill the left most place only in 9 ways because 0 cannot be used. So
  Units place: 9*10*10*1=900
  Tens place: 9*10*1*10=900
  Hundreds place: 9*1*10*10=900
  Thousands place:1*10*10*10=1000
  
  Total: 900+900+900+1000=3700
• 8 years agoHelpfull: Yes(20) No(2)
• in unit place 2 comes 900 time.
  in tenth place 2comes 900 time
  in 100th place 2 comes 900 time
  in 1000 place 2 comes 1000 times
  so answer will be 900 +900+900+1000=3700
• 8 years agoHelpfull: Yes(15) No(10)
• general fORMULA FOR CALCULATING OCCURENCE OF A DIGIT IN A RANGE IS= N *(10^N-1 ) FROM RANGE 1 TO 10^N
  FOR EXAMPLE WE WANT TO CALCULATE OCCURENCE OF DIGIT 6 FROM 1 TO 1000.......
  HERE FOR 10^N=1000 I.E. N =3 SOO...............
  BY GIVEN FORMULA N*(10^N-1) WE GET = 3*(10^3-1)=3*(10^2)=3*100=300
  
• 8 years agoHelpfull: Yes(6) No(4)
• Total no = 9999-1000+1 = 9000
  Total no of nos which dont have 2 =
  8*9*9*9 = 5832
  first place can be filled in 8 ways (excluding 0,2)
  Second place can be filled in 9 ways (excluding 2)
  Similarly, third and fourth.....
  Hence total no of nos which have 2 =
  9000-5832 = 3168
• 8 years agoHelpfull: Yes(4) No(1)
• at unit place 2 comes= 9*9 =81 times
  at tenth place 2 comes =9*9=81 times
  at 100th place 2 comes =9*9 =81 times
  at 1000 place 2 comes =9*9 =81 times
  total 2 are there =81+81+81+81=324
  
• 8 years agoHelpfull: Yes(3) No(12)
• can anyone say about the vanue of off campass which is on 2nd march????2016 kolkata
• 8 years agoHelpfull: Yes(3) No(2)
• in unit place 2 don't comes 9 time.(0,1,3,4,5,6,7,8,9)
  in tenth place 2 don't comes 9 time. (0,1,3,4,5,6,7,8,9)
  in 100th place 2 don't comes 9 time. (0,1,3,4,5,6,7,8,9)
  in 1000 place 2 don't comes 8 times. (1,3,4,5,6,7,8,9)
  so, total no of times=9999
  we get 2 = 9999-(8*9*9*9) =9999- 5832
  =4167
  
• 8 years agoHelpfull: Yes(1) No(3)
• Units place: 9*10*10*1=900
  Tens place: 9*10*1*10=900
  Hundreds place: 9*1*10*10=900
  Thousands place:1*10*10*10=1000
  
  Total: 900+900+900+1000=3700
• 8 years agoHelpfull: Yes(1) No(1)
• 1's place =9*10
  10th = 9*17
  100th = 1*100
  1000th = 1*1000
  
  so total= 1127
• 8 years agoHelpfull: Yes(0) No(5)
• 900+90*9=1710
  
• 8 years agoHelpfull: Yes(0) No(1)
• please give the coreect answer of this puzzle ..
• 8 years agoHelpfull: Yes(0) No(1)
• 1000's 100's
• 8 years agoHelpfull: Yes(0) No(1)
• fix 2 in each place and add the possibilites in the other places
  1000's 100's 10's 1's
  1-9 0-9 0-9 0-9
  3 10 10 10=1000
  9 3 10 10=900
  9 10 3 10=900
  9 10 10 3 =900
  1000+900+900+900=3700
• 8 years agoHelpfull: Yes(0) No(2)