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Mathematics
Probability
Ball Selection
A bag contains 10 black balls and 15 white balls.if a ball is picked at random without replacement, what is the probability of picking a white ball?
A.1/5
B.3/5
C.2/5
D.4/5
1 answer
15 is the number of white balls, while the total number of balls is 25. 15/25 would be the probability (because black and white balls are all together, and you want only black balls), and simplified it is 3/5, which is B :)
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