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Set and Probability Pairs
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GMAT
DI.184 Set and Probability Pairs
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For two events A and B, P(A or B) = 2/3, P(A and B) = 1/6, and P(A only) is twice P(B only). Which pair gives P(A) and P(B)?
A
P(A) = 1/3; P(B) = 1/2
B
P(A) = 1/2; P(B) = 1/3
C
P(A) = 11/20; P(B) = 1/3
D
P(A) = 1/2; P(B) = 23/60
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