To determine who drove faster, we can think about the distances each person covered and the time they took, without needing to perform any specific calculations.
Mel drove 230 miles in 4 hours, while Pia drove the same distance of 230 miles but took 5 hours to do so.
Since they both drove the same distance but Mel took less time (4 hours) than Pia (5 hours), Mel must have been driving faster. In general, when two individuals cover the same distance, the one who takes less time to cover that distance is the one who is driving faster.
Therefore, without performing any calculations, we can conclude that Mel drove faster than Pia.