Mathematics · Speed, Time and Distance
An airplane left 30 minutes later than its scheduled time. In order to reach its destination 1,500 km away on time, it had to increase its speed by 250 km/h from its usual speed. What is its usual speed?
- 1800 km/h
- 2750 km/h✓
- 32,500 km/h
- 41,000 km/h
Correct answer
750 km/h
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