The speed that should be taken by Lionel to get to the destination will be 78 miles per hour.
<h3>How to calculate the speed</h3>
From the information given, when Lionel drives from Barcelona to Madrid, 390 miles, it takes him about 6.5 hours.
The speed to make the trip in 5 hours will be:
Speed = Distance / Time
Speed = 390/5
Speed = 78 miles per hour.
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