Read the sentences and find each average speed in km/h. (Đọc các câu và tìm tốc độ trung bình của mỗi km / h.)

1. In 2014 Dennis Kimetto completed the Berlin Marathon in 2 hours, 2 minutes and 57 seconds (2.05 hours). The marathon was 42.19 kilometres.

2. In 2014 Dame Sarah Storey completed the 3 kilometre para-cycling track race in 3 hours 32 minutes and 5 seconds (3.54 hours).

3. In 2015, Lewis Hamilton drove one lap (5.3 kilometres) in the Australian Grand Prix in 1 minute, 30 seconds.

4. In 2014 Sarah Sjöström swam the 50m butterfly in 24.43 seconds.