Vavilen inflated a huge balloon in 191919 minutes. then he poked a hole in the balloon so that it slowly leaked air out until it was completely deflated.
the rate at which the air leaked out of the balloon (in liters of air per minute) was half of the rate at which vavilen inflated the balloon. it took the balloon 383838 minutes to completely deflate.
at what rate did vavilen inflate the balloon, and at what rate did the balloon deflate?

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?