Let A and B be two events with P(A interception B)= 0.2, P(B) =0.15, and P(A U B)= 0.75. Find P(A)
Draw a Venn diagram
say we have 100 items
75 are in A or B (25 are outside)
15 are in B
2 of those are also in A (intersection you mean I think)
so 13 are exclusively in B
That means 75 - 13 = 62 are in A
62/100 = .62