2014 AIME I Problems/Problem 2

Revision as of 06:06, 14 March 2014 by Agrgordon (talk | contribs)

An urn contains $4$ green balls and $6$ blue balls. A second urn contains $16$ green bals and $N$ blue balls. A single ball is drawn at random from each urn. The probability that both balls are of the same color is $0.58$. Find $N$.