GRE Problem Solving Question 455
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Source: Magoosh
The probability that event A occurs is 0.4, 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 0.6, what is the probability that event B will occur?
- A 0.05
- B 0.15
- C 0.45
- D 0.50
- E 0.55