A bag contains five white and four red balls. Two balls are picked at random from the bag. What is the probability that they both are different color?  Select
A) 5/8 B) 5/9 C) 5/2 D) 5/1 E) 5/0
Explanation:   Two balls can be picked from nine balls in ways.   We select one white ball and one red ball from five white balls and four red balls. This can be done ways.   The required probability = (5 * 4)= 
<gadget id="calculator">(5 * 4)</gadget>
<output>20</output>
20/36= 5/9   Answer:5/9
<result>B</result>
A bag contains five white and four red balls. Two balls are picked at random from the bag. What is the probability that they both are different color?