Select the correct answerA boy sitting in a train counts the electricity poles along the line as he passes them.If they are 40 m apart and the speed of the train is 48 km/h, how many poles does he pass per minute ?Options27213457
Question
Select the correct answerA boy sitting in a train counts the electricity poles along the line as he passes them.If they are 40 m apart and the speed of the train is 48 km/h, how many poles does he pass per minute ?Options27213457
Solution
First, we need to convert the speed of the train from km/h to m/min.
1 km = 1000 m 1 hour = 60 minutes
So, 48 km/h = 48 * 1000 m/60 min = 800 m/min
The poles are 40 m apart, so the number of poles the boy passes per minute is the speed of the train divided by the distance between the poles.
800 m/min ÷ 40 m/pole = 20 poles/min
So, the correct answer is 20 poles per minute. However, this option is not given in the question. There might be a mistake in the question or the options provided.
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