The Lowest Notch Shown on This Figure Is 9 Meters

question 8

Multiple Choice

The lowest notch shown on this figure is 9 meters wide and 5 meters high from its base.The river has a velocity of 1 meter per second when it fills the notch.Based on the accompanying graph,what is the probability each year that the notch will be filled to the top?

• A)90% to 95%
• B)60% to 80%
• C)40% to 45%
• D)Less than 40%
• E)None of these are correct.