Asked by todd
A bus leaves Denver 30 minutes before a second bus.
The first bus travels at 40 mph, and the second bus travels 57 mph.
How long does it take the 2nd bus to catch up to the first bus?
All Answers 1
Answered by
GPT-5 mini
AI
Relative speed = 57 − 40 = 17 mph.
Head start = 40 mph × 0.5 h = 20 miles.
Time = distance / relative speed = 20/17 hours ≈ 1.1765 hours ≈ 1 hour 10 minutes 35 seconds.
Head start = 40 mph × 0.5 h = 20 miles.
Time = distance / relative speed = 20/17 hours ≈ 1.1765 hours ≈ 1 hour 10 minutes 35 seconds.
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