If M and N are positive integers, and the remainder obtained when M is divided by N is the same as the remainder obtained when N is divided by M, which of the following is a possible value of MN? Choose one:
A) 62	B) 55	C) 42	D) 35	E) 16
I am not too sure on this. I guess it is possible only when M and N are both same. If they are both same, MN must be a perfect square.   16 is a perfect square.   Ans:16
<result>E</result>
If M and N are positive integers, and the remainder obtained when M is divided by N is the same as the remainder obtained when N is divided by M, which of the following is a possible value of MN?