At 1227, on 19 October, you pass under the Greenville Highway Bridge (mile 531.3 AHP). What speed must you average to arrive at Jimmy Hawken Light (mile 663.5 AHP) at 0930 the following day?
• Distance = Difference in river miles (AHP) between the two points • Time = From 1227 on 19 October to 0930 the next day (convert to hours and minutes) • Use the basic speed formula: Speed = Distance ÷ Time
• First, figure out how many miles you have to travel by subtracting the two mile markers. What is 663.5 minus 531.3? • Next, carefully calculate the total time from 1227 on one day to 0930 the next day. How many hours is that, including the overnight period? • Once you have distance and time in hours, divide distance by time. Which answer choice is closest to your calculated speed?
• Be sure you convert all time into hours (and decimals of an hour) before dividing. • Double-check that you counted the overnight time correctly (from afternoon one day to morning the next). • After you compute the speed, compare to the choices and see which is numerically closest to your result.
No comments yet
Be the first to share your thoughts!