In a bag there are 10 black balls and 25 blue balls and 15 white balls. A ball is drawn at random. What is the probability of getting a white or a black ball? Pick one
A) 3/2
B) 1
C) 1/2
D) 5/2
E) 3
total draws =10+25+15= 
<gadget id="calculator">10+25+15</gadget>
<output>50</output>
50   probability of getting a white ball= 15/50 . probability of getting a black ball=10/50. probability of getting a white or black ball=15/50+10/50=25/50=1/2. 1/2orrect Answer : 1/2
<result>C</result>
In a bag there are 10 black balls and 25 blue balls and 15 white balls. A ball is drawn at random. What is the probability of getting a white or a black ball?