A bag contains 8 red and 4 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
Choose one:
A) 4/7 B) 2/3 C) 5/8 D) 1/4 E) 5/7
Total number of balls = 8+4= 
<gadget id="calculator">8+4</gadget>
<output>12</output>
12   number of white balls= 8   Probability = 8/12 = 2/3   Answer is 2/3
<result>B</result>
A bag contains 8 red and 4 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?