Solve the Problem $1 / 500$ Of Their Ideal Weight? Assume That the Thickness Does Not

Multiple Choice

Solve the problem.
-A manufacturer contracts to mint coins for the federal government. How much variation dr in the radius of the coins can be tolerated if the coins are to weigh within $1 / 500$ of their ideal weight? Assume that the thickness does not vary.

A) 0.20%
B) 0.10%
C) 0.0010%
D) 0.0020%