value of x and y?
so 2430=(10x+y)*(10y+x)

• let xy be a number where x and y are digits so 10x+y represents same number as 10y+x writtem in reverse order
  on factorization of 2430 we get factors as = 2 x 5 x 3 x 3 x 3 x 3 x 3
  make different combination keeping in mind that if one pair is 10x+y another must represent 10y+x
  so let have diffenrent combination= (2 x 5 x 3) x ( 3 x 3 x 3 x 3 )
  =30 x 81 (wrong combination)
  you may try more until you get the following one
  again= (5 x 3 x 3 ) x (2 x 3 x 3 x 3)
  = 45 x 54
  so here if x= 4 then y=5
  or if x=5 then y = 4
  so number may be either 45 or 54 answer
• 12 years agoHelpfull: Yes(42) No(0)
• an easy approch is.. the result constitutes of 0 in the units digit. this implies that one of the multiplied numbers should definetly contain a 5 in units digit and other number should have a EVEN number in the units digit, by trail and error.. 2 doesn't fit.. hence 4 does. the answer is 45 and 54...
• 12 years agoHelpfull: Yes(11) No(1)
• 2430=100xy+10x^2+10y^2+xy
  put the values and get the answer.
  x=4,y=5
• 12 years agoHelpfull: Yes(9) No(5)
• 54 and 45 since 54 and 45 are multipied
• 12 years agoHelpfull: Yes(0) No(0)
• from the equation we can say clearly that the required numbers are two digit numbers
  roughly estimate the square root of 2430 it's around 46..
  for a number to have 0 in units place we should have 5 or 0)0 is not possible since 10's place in second number will not satisfy)
  therefore divide 2430 with 45 remainder is 54 yes u struck the answer
• 11 years agoHelpfull: Yes(0) No(0)