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On Raj's drive to his aunt's house, the traffic was light, and he drove the 45-mile trip in one hour. However, the return trip took his two hours. What was his average trip for the round trip?

On Raj's drive to his aunt's house, the traffic was light, and he drove the 45-mile trip in one hour. However, the return trip took his two hours. What was his average trip for the round trip? Correct Answer 30 mile per hour

Total distance = 45 + 45 = 90 miles

Total time = 1 + 2 = 3 hrs

∴ Average speed = 90/3 = 30 mile per hour

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