Two trains are moving on parallel tracks in the same direction. The quicker train travels at 140 miles per hour, while the slower train moves at 110 miles per hour. At 3 o’clock, the quicker train is 15 miles behind the slower one. What is the distance between the two trains at 6 o'clock?

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Correct answer marked below

65 miles

75 miles

Correct

95 miles

125 miles

405 miles

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Explanation

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Official Explanation

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Answer = B. 85 miles. The relative speed is calculated as 140 - 110 = 30 miles per hour. Over the course of 3 hours, the distance covered is 30 * 3 =…

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Comments

ArshvirNov 13, 2024

Thankss

TrangSep 24, 2024

thanks

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.