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Mathematics, 05.12.2021 14:00 ChloeLiz9205

Natalia lives in Amsterdam and leaves home to cycle to a bookstore at a speed of 5 m/s for 7 min to return her books. After 10 min at the bookstore, she cycles to her friend's house at a speed of 4 m/s for dinner. The total distance travelled by Natalia is 7200 m. What is the average speed (to 3 s. f.) for the whole journey in km/h? 3.14 m/s
4.15 m/s
6.12 km/h
11.3 km/h

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