x and y are two different two digit number .they are numerical reversal of each other and so are the squares of these numbers..
how many such pairs are possibel

• There are 4 Such no. are possible
  i.e. 12 ,21 ,13,31
  because 12 is two digit no. and its reversal is 21
  moreover square of 12 is 144
  and square of 21 is 441
  we can see that 144 & 441 are reversal of each other
  
  Similarly 13 & 31 are reversal of each other
  Squares of 13*13 =169
  squares of 31*31 =691
  We can see that their squares are also reversal of each other
• 9 years agoHelpfull: Yes(4) No(0)
• ans : 2
  
  12 and 21
  13 and 31
• 9 years agoHelpfull: Yes(1) No(2)