The odds against a certain event are 5 to 2, and the odds in favor of another event independent of the former are 6 to 5. Find the chance that one at least of the events will happen.

The odds against a certain event are 5: 2 and the odds in favour of another independent event are 6:5. The probability that at least one of the events will happen, is

The odds against a certain event is 5 : 2 and the odds in favour of another event is 6 : 5. If the both the events are independent, then the probability that at least one of the events will happen is

The odds against of an event are 5:7 , find the probility of occurrence of this event .

The odds against of an event are 3:4 . Find the probability of the occurrence of the event.

The odds against of an event 5:3 . Find the probability of the occurrence of the event.