If P(A∣B)=1/3P(A|B) = 1/3P(A∣B)=1/3 and P(B∣A)=1/2P(B|A) = 1/2P(B∣A)=1/2, what is P(A)/P(B)P(A)/P(B)P(A)/P(B)?
1/21/21/2
2/32/32/3
3/43/43/4
3/23/23/2