EM-2312
Rate and average speed
E Math · Secondary 4 · Medium · Rate and average speed
A car travels in a straight line from town A to town B at a constant speed of 60 km/h. It then immediately returns from B to A at a constant speed of 40 km/h.
The distance between A and B is 120 km.
Find the total time taken for the whole journey, in hours.
The distance between A and B is 120 km.
Find the total time taken for the whole journey, in hours.
- 5
- 4
- 2.5
- 3
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