A box contains 3 red balls 4 white balls and 7 black balls one ball is chosen at random what the probability of choosing the black ball is.
A. 2/5
B. 2/4
C. 1/3
D. 5/7
Answer:D
A box contains 3 red balls 4 white balls and 7 black balls one ball is chosen at random what the probability of choosing the black ball is.
A. 2/5 B. 2/4 C. 1/3 D. 5/7