SOLUTION: Two groups of students went to Alabang, one in a jeepney and the other in a bus. The jeepney left Quiapo at 6:30 AM and traveled at an average rate of 75 kph. The bus left Quiapo

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Question 993619: Two groups of students went to Alabang, one in a jeepney and the other in a bus. The jeepney left Quiapo at 6:30 AM and traveled at an average rate of 75 kph. The bus left Quiapo at 7:00 AM. The two groups arrived together in Alabang at 8:30 AM. What was the average speed of the bus?
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Two groups of students went to Alabang, one in a jeepney and the other in a bus.
The jeepney left Quiapo at 6:30 AM and traveled at an average rate of 75 kph.
The bus left Quiapo at 7:00 AM.
The two groups arrived together in Alabang at 8:30 AM. What was the average speed of the bus?
:
Find the distance using the information about the Jeepny; it left at 6:30 and arrived at 8:30 for travel time of 2 hrs
Dist = speed * time
d = 2 * 75 = 150 km from A to Q
:
The bus left at 7:00 arrived at 8:30 for a travel time of 1.5 hrs
Speed = dist/time
s = 150/1.5
s = 100 km/hr is the speed of the bus