If the probability of A is 60%, what are the ODDS for event A?

Question

 if the probability of B is 90%, what are the ODDS for event B? 

Answer 1

P(A) = 60% = 3/5 = 0.6

odds of A = 3:(5-3) = 3:2

for every 3 times A happens, B happens twice

Answer 2

P(A) = 3/5  = a/(a+b)

O(A) =3:2 = a/b