SSC MTS 2019 · PYQ · Average Speed · medium
A travels 15 km with a speed of 30 km/h. He travels another 25 km with a speed of 10 km/h. What is his average speed for the entire journey?
Answer
The correct answer is B: 40/3 km/h. Total distance = 40 km. Total time = 15/30 + 25/10 = 0.5 + 2.5 = 3 hrs.
- A.80/3 km/h
- B.40/3 km/h✓ Correct
- C.12 km/h
- D.20 km/h
Total distance = 40 km. Total time = 15/30 + 25/10 = 0.5 + 2.5 = 3 hrs. Average speed = 40/3 km/h.
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