Soal SMP · Soal cerita · Kesulitan 3/5
A train travels from Town A to Town B at an average speed of 60 km/h. The distance is 180 km. It stops for 15 minutes at Town B, then returns to Town A at 80 km/h. What is the total time for the round trip?
- A.5 hours 15 minutes
- B.5 hours 30 minutes
- C.5 hours 45 minutes
- D.6 hours
Kunci jawaban & pembahasan
Jawaban: 5 hours 15 minutes
Outbound: 180/60 = 3 hours. Return: 180/80 = 2.25 hours = 2 hours 15 minutes. Plus 15 minutes stop = 5 hours 30 minutes. Wait, correction: 3 + 2.25 + 0.25 = 5.5 hours = 5 hours 30 minutes. So answer is 5 hours 30 minutes.
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