Let A be the two digit number. How many numbers are there, if 18 more the sum of the digits is the same number?

• X+y+18=10x+y
  X=2
  Y can be any no from 0 to 9
  Hence ans is 10
• 10 years agoHelpfull: Yes(20) No(0)
• let the digit of no. is x and y
  unit digit y and tens digit is x hence no. will be 10*x+y
  as given 18 more the sum of digit is same no.
  so (x+y)+18 = 10*x+y
  x=2;
  possible two digit no. with x=2 are
  20,21,22,23,24,25,26,27,28,29
  total 10 numbers
• 10 years agoHelpfull: Yes(10) No(0)
• ANS:10
  X+Y+18=XY
  POSSIBLE NUMBERS:21,22,23,24,25,26,27,28,29
  Ex:29
  2+9=11+18=29
• 10 years agoHelpfull: Yes(6) No(7)
• x+y+18=10x+y
  9x=18
  x=2
  Value of y can be anywhere btw 0-9
  So,total possible numbers are 10
  i.e from 20-29.
• 10 years agoHelpfull: Yes(5) No(0)
• The equation is x+y+18=x+10y where x and y are digits of A
  Solving we get y=2
  Then the equation becomes true for all values of x
  So numbers possible is 10 for values of x from 0 to 9
• 10 years agoHelpfull: Yes(1) No(0)
• The equation is x+y+18=x+10y where x and y are digits of A
  Solving we get y=2
  Then the equation becomes true for all values of x
  So numbers possible is 10 for values of x from 0 to 9
• 10 years agoHelpfull: Yes(1) No(0)
• 20 to 29 will be those nos..
  
  if u check anyone among these,, say 25 then 2+5=7 and 7+18 = 25..
  so the ans is 10
• 10 years agoHelpfull: Yes(1) No(0)
• SORRY
  TAKE ALSO 20..
• 10 years agoHelpfull: Yes(1) No(0)
• Let A=10x+y
  A/q x+y+18=10x+y
  so x=2
  so the no. will be 21 where 2+1+18=21
• 10 years agoHelpfull: Yes(0) No(1)
• A=XY(2 digit no.)
  
  X+Y+18=XY
  
  possible ans-21,22,23,24,25,26,27.28.29
  2+1+18=21
  2+2+18=22
  2+3+18=23
  2+4+18=24 and so on
  so 9 such numbers are possible
• 10 years agoHelpfull: Yes(0) No(3)
• "PRACHI SHARDA" according to your logic 20 is also applicable, 2+0+18=20 again
• 10 years agoHelpfull: Yes(0) No(0)
• starting to count from 19 to 29 we can notice that all these numbers satisfy the above condition.
  hence the ans is 11.
  
• 10 years agoHelpfull: Yes(0) No(1)
• 10 numbers
• 10 years agoHelpfull: Yes(0) No(0)
• hey this question is asked in TCS?
• 10 years agoHelpfull: Yes(0) No(3)