The probability that event B occurs is 0.6, and the probability that events A and B both occur is 0.25. If the probability that either event A or event B occurs is 0.4, what is the probability that event A will occur?	Select:
A) 0.05
B) 0.15
C) 0.45
D) 0.5
E) 0.55
P(0.05 or B) = P (0.05) + P(B) - p(a n b)   0.4= 0.6 + P(0.05) - 0.25   P(0.05) = 0.05   0.05ns : 0.05
<result>A</result>
The probability that event B occurs is 0.6, and the probability that events A and B both occur is 0.25. If the probability that either event A or event B occurs is 0.4, what is the probability that event A will occur?