The average of two numbers is XY. If one number is X, then the other number is
Choose the correct choice from the following choices:
A) Y
B) Y⁄2
C) 2XY – X
D) X(Y – 1)
E) None of these
Let the other number is N.   Then , X+N/2 = XY ⇒ N = 2XY - X   Answer 2XY – X
<result>C</result>
The average of two numbers is XY. If one number is X, then the other number is