(Solved): Z 2.1-12 2.1-12. A bag contains 144 ping-pong balls. More than half the balls are painted oran ...

??Z 2.1-12 2.1-12. A bag contains 144 ping-pong balls. More than half the balls are painted orange and the rest are painted blue. Two balls are drawn at random without replacement. The probability of drawing two balls of the same color is the same as the probability of drawing two balls of different colors. How many orange balls are in the bag?