GPL Mathematical Skills | Number System

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Q. No. 25:	If x and y are any natural numbers, then which of the following is an odd number ?
A :	x^y + y^x (x-y)(x^y +x)
B :	x^y (x+y)(x^y +x)
C :	y^x (x² -y)(x^y -x)
D :	None of these

Solution Answer: A x and y are natural numbers. We know that of any natural number p. pⁿ +p is even And, pⁿ -p is even. When we multiply an even number to any natural number the resultant number is even.