Probability (Offer =1/ years_of_experience =5)

Can you explain how did we estimate the probability of Probability (Offer =1/ years_of_experience =5) = 36%.

I used the probability mass function for (Probability X = 5/ Y = 1) and estimated a probability of 43.85%. Applying this to the Bayes Theorem formula where P(Offer =1) = 2/5 (40%) and P(years_of_experience = 5) =1/5 (20%).

Probability (Offer =1/ years_of_experience =5) = (43.85%) x (40%)/(20%) = 87.7%. 

This does not match the 36% probability estimated.