Oil cans x and y are right circular cylinders and the height and radius of y are each 10 times those of x. If the oil in can x filled to capacity sells for $1, how much does the oil in y sell for if y is only half filled? Choose the correct choice from the following choices:
A) $400	B) $450	C) $500	D) $550	E) $600
formula for vol of a cyl is PI*r^2*h   so Vy = 1000*Vy   y when half filled will cost 500 times x so ans is $500
<result>C</result>
Oil cans x and y are right circular cylinders and the height and radius of y are each 10 times those of x. If the oil in can x filled to capacity sells for $1, how much does the oil in y sell for if y is only half filled?