Free Practice Question
PS · Problem Solving
505-555
Distance/Rate Problems
Simultaneously departing from city X, George heads to city Y while Harry travels to city Z. George completes his journey in 5 hours, whereas Harry takes 6 hours. The distance from city X to city Y is 750 kms, and from city X to city Z is 450 kms. What is the ratio of their average speeds? (George: Harry)
Answer Choices
Correct answer marked belowA
5/6
2/1
Correct
C
5/4
D
4/5
E
5/3
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Explanation
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Official Explanation
Official
Distance covered by George = 750 km. Time taken by George = 5 hours. Average speed of George = 750/5 = 150 km/hour. Distance covered by Harry = 450 km. Time…
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Comments
2
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R
RajatJan 15, 2024
got this wrong on my practice
C
ClairinFeb 19, 2025
Great!
What this question tests
What it tests
Your application of distance = rate × time to trains, boats, and commuters, including relative speed.
Common trap
Mixing units (miles per hour vs. minutes) or averaging speeds — average speed is total distance over total time.
Details
Difficulty
505-555
Type
PS
Category