I get a stupid question - 金融分析師

※ 引述《acts (acts)》之銘言：
: A and B are Mutually exclusive
: C and D are Mutually exclusive
: if P(a) = 0.1
: P(d) = 0.5
: P(A and D) = 0.45
: What is the probability for P(B and C)
: Help me thank you so much


Actually forget what the detail is for this problem.
I am so sorry
Is there anyone who could figure out how to get the answer for this
type of problem?

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