help me

Suppose the Jet's quarterback has a 60% probability of completing 20
or more passes in a Football game, and a 40% probability of completing
less than 20 passes. With 20 or more completions, the Jets have an 80%
probability of winning the game. But, with less than 20 completions,
the probability of winning falls to 40%. If the Jets win the next
game, what is the probability that the quarterback completed more that
20 passes?
.

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