Free Practice Question
PS · Problem Solving
555-605
Distance/Rate Problems
Two trains are moving towards each other on parallel tracks at speeds of 55 miles per hour and 65 miles per hour, and they are currently 300 miles apart. What will be the distance between them 2 hours before their engines meet?
Answer Choices
Correct answer marked belowA
100
B
120
C
140
D
200
240
Correct
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Explanation
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Official Explanation
Official
This problem involves relative speed. When two objects move towards each other, their combined speed is the sum of their individual…
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Comments
2
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M
MohiniAug 12, 2024
taking my GMAT next month, this helps!
J
JinsolSep 3, 2024
thanks for taking time to upload it!
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
555-605
Type
PS
Category