Hello to all and thanks in advance to whomever may help me with the following. I am a student of this topic so please if you have a sec explain. Thanks!!

Suppose a target consists of three superimposed circles. The innermost circle has an area of 3(pie) square inches, the middle band has an area of 10(pie) square inches, and the outer band has an area of 23(pie) square inches. If you throw a dart onto the board, what is the probability that it will land in the innermost circle?

I get .083 probability.