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Calculate your safe return time when overflying waypoint Charlie. Your fuel flow is constant at 500 lbs per hour. You currently have 1800 lbs and need to reach your destination with 350 lbs left in your fuel tank. How much time do you have left to reach your destination?

  • A

    2 h 30 min

  • B

    2 h 54 min

  • C

    3 h 00 min

  • D

    3 h 10 min

You currently have 1800 lbs of fuel.

1800 lbs - 350 lbs = 1450 lbs - This is the amount of fuel that you can use to reach your destination, so that you have 350 lbs upon reaching the destination

1450 lbs / 500 lbs per hour = 2.9 hours or 2 h 54 min - This is the amount of time you have to reach your destination, so that you can have 350 lbs of fuel upon reaching your destination

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