- A360 km
- B180 km
- C240 km
- D300 km
Step-by-Step Solution
Speeding up by 25% cuts time by a fifth. Whole run: h → h. Partial: h, so 120 km takes 1 h → km/h and km.
Answer: C) 240 km
If a train ran 25% faster it would save 24 minutes on its run. If it ran the first 120 km at its normal speed and only then speeded up by 25%, it would save 12 minutes. How long is the run?
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