A train traveling at 84 kmph passes a telephone pole in 6 seconds. What is the length of the train?

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Correct answer marked below

70 m

80 m

90 m

140 m

Correct

150 m

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Explanation

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Official Explanation

Official

To find the length of the train, we first convert the speed from kmph to m/sec. The conversion is done as follows: 84 kmph = 84 * 5/18 = 23.33 m/sec. Next, we…

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Comments

TafreeDec 9, 2024

thanks for posting

SohiniOct 11, 2024

Can you explain more?

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.