A bag contains 40 black balls and 40 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
Choose the correct choice from the following choices:  A) 2/5  B) 5/7  C) 1/2  D) 1/4  E) 1/3
Total number of balls = 40+40= 
<gadget id="calculator">40+40</gadget>
<output>80</output>
80   no. of white balls= 40   probability of drawing a white ball = 40/80 = 1/2   Answer is 1/2
<result>C</result>
A bag contains 40 black balls and 40 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?