If a boy started writing 4 digit no then how many times 2 comes?

• for unit place-900
  for tens place-900
  for hundreds place-900
  for thousands place-1000
  total---3700
• 10 years agoHelpfull: Yes(15) No(2)
• Number of 2‘s at units place(1000 to 9999)=900
  Number of 2‘s at tenths place(1000 to 9999)=900
  Number of 2‘s at hundreds place(1000 to 9999)=900
  Number of 2‘s at thousands place(1000 to 9999)=1000
  
  therefore total number of 2‘s =(900+900+900+1000)=3700
• 10 years agoHelpfull: Yes(8) No(1)
• 4 digit number will be from 1000 to 9999
  Consider 2 at unit's place. There will be 900 such numbers
  Similarly there will be 900 numbers when 2 will be at ten's and hundred's place.
  And finally when we consider 2 at thousand's place, there will 1000 such numbers.
  Thus 900+900+900+1000=3700 will be the answer.
• 10 years agoHelpfull: Yes(5) No(0)
• can any one explain how 900 numbers are obtained if 2 is placed in units digit
• 10 years agoHelpfull: Yes(5) No(0)
• in 100 comes 19th time
  1000-9999 is 999 terms so 10*19=190
  
• 10 years agoHelpfull: Yes(2) No(7)
• i think no. of 2 between 1000 n 9999=20ans
• 10 years agoHelpfull: Yes(2) No(7)
• the ans is
  9*10*10*1=900
  9*10*1*10=900
  9*1*10*10=900
  1*10*10*10=1000
• 10 years agoHelpfull: Yes(2) No(0)
• ans:=3168
  4 digit no with digit 2 is=9*10*10*10=9000
  4 digit no not with digit 2 is 8*9*9*9=5832
  total no of 2=9000-5832=3168
  
• 10 years agoHelpfull: Yes(1) No(3)
• 2222
  in unit's digits=2
  in tens digits=20
  in hundred's =200
  in thousands=2000..........addition of all these values=2222
• 10 years agoHelpfull: Yes(0) No(4)
• ans will be 3700
  
• 10 years agoHelpfull: Yes(0) No(0)
• The total 4 digit numbers are:1000 to 9999 is 9000
  out of 9000 i never use 2 digit is
  unit digit is:9 ways
  10's digit:9
  100,s digit:9
  1000's place:8(0 is not allowed)
  hencerequired ans:9000-(9*9*9*8)=3168
• 10 years agoHelpfull: Yes(0) No(0)
• Number of 2‘s at units place(1000 to 9999)=900
  Number of 2‘s at tenths place(1000 to 9999)=900
  Number of 2‘s at hundreds place(1000 to 9999)=900
  Number of 2‘s at thousands place(1000 to 9999)=1000
  
  therefore total number of 2‘s =(900+900+900+1000)=3700
• 8 years agoHelpfull: Yes(0) No(0)