Plant a Is Located at the (X,Y)coordinates of (100,200)and Has

Plant A is located at the (X,Y) coordinates of (100,200) and has a volume of shipping of 500 units a day.Plant B is located at the (X,Y) coordinates of (150,400) and has a volume of shipping of 200 units a day.Using the centroid method,which of the following is the X coordinate for the new plant location?

A) About 100
B) About 115
C) About 130
D) About 150
E) X coordinate can not be computed from the data given