SAT Math· difficulty 4/5
Train A leaves the station at 9 AM going 50 mph east. Train B leaves the same station at 10 AM going 65 mph east. At what time does B catch A?
3:20 PM
1:20 PM
2:20 PM
12:20 PM
Explanation
By 10 AM, A is 50 mi ahead. B closes at 15 mph. Time to catch h ≈ 3 h 20 min after 10 AM = 1:20 PM.
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