Question

If P(A) = 4/5 and P(A - B) = 7/10 then
P(B/A) =
(A)1/10. (B) 1/8
(D) 17/0. (C) 17/20

Answer 1

NO SUFFICIENT INFORMATION

Answer 2

Answer:

(B)1/8

Step-by-step explanation:

P(A)=4/5

A=4/5P

P(A-B)=7/10

P*4/5P-PB=7/10

PB=4/5-7/10

PB=1/10

So,

P(B/A)

=P(1/10*5/4)

=1/8