We know that X is an odd integer.
(1) The average of x and y is an odd integer.
(2) The average of x, y, and (y + 1) is an integer.
Is y an odd integer?

• y is odd but perfect square root of odd number like
  9 is perfect square root
  25,49 etc.
• 10 years agoHelpfull: Yes(0) No(0)