Question

If P (A) = 4/9; then the odd against the event ‘A’ is
(a) 4:9
(b) 4:5
(c) 5:4
(d) 4:14

Answer 1

here is your answer--

x+4/9=1

x=1-4/9

x=9-4/9

x=5/9

Answer 2

P(A)+P(A')=1

or, P(A')=1–P(A)

or, P(A')=1–4/9

or, P(A')=5/9