An event has odds in favour $4 : 5$, then the probability that event occurs, is
An event has odds in favour $4 : 5$, then the probability that event occurs, is
- A
$\frac{1}{5}$
- B
$\frac{4}{5}$
- C
$\frac{4}{9}$
- D
$\frac{5}{9}$
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