MA-440
Rate and speed problems
Lower Sec Maths · Secondary 1 · Hard · Rate and speed problems
Lina jogs at an average speed of 9 km/h for 1.5 hours, then walks 4 km in 1 hour. What is her average speed for the whole trip?
- 7 km/h
- 6 km/h
- 8 km/h
- 10 km/h
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