Here are the answers and walkthrough to Stupid Test Level 3 Question 10 – I drove 60 kms at 30 km/hr and then an additional 60 kms at 50 km/hr. What was my average speed over the total 120 kms?

• It takes 2 hours to travel the first 60 km and 1.2 hours to travel the second 60km. Therefore, the total trip took 3.2hours. Thus 120km/3.2hours=37.5km/h

Answer

• 37.5 Km/Hr

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