At a groundspeed of 180 knots, how many total pounds of fuel would be consumed over a duration of 1 hour and 15 minutes at 80 pounds per hour?

To determine the total pounds of fuel consumed over a duration of 1 hour and 15 minutes at a rate of 80 pounds per hour, it is important to first convert the time into hours. One hour and 15 minutes can be expressed as 1.25 hours (since 15 minutes is 0.25 hours).

The fuel consumption rate is given as 80 pounds per hour. To calculate the total fuel consumption over 1.25 hours, multiply the consumption rate by the duration:

Total fuel consumption = Fuel consumption rate × Time

Total fuel consumption = 80 pounds/hour × 1.25 hours

Total fuel consumption = 100 pounds

Therefore, the total fuel consumed is accurately calculated as 100 pounds. This option aligns with the calculations based on the provided information regarding fuel consumption and flight duration.