A bag contains 80 black balls and 10 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
Select.
A) 2/5	B) 5/7	C) 1/9	D) 1/4	E) 1/3
Total number of balls = 80+10= 
<gadget id="calculator">80+10</gadget>
<output>90</output>
90   no. of white balls= 10   probability of drawing a white ball = 10/90 = 1/9   Answer is 1/9
<result>C</result>
A bag contains 80 black balls and 10 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?