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A train 800 meters long is running at a speed of 78 km/hr . If it crosses a tunnel in 1 minute, then the length of the tunnel ( in meters ) is :

Created: 7 years ago | Updated: 4 years ago

Updated: 4 years ago

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Bangladesh Bank Bangladesh Bank - Officer(Cash) - 2016 গণিত ট্রেন ও গতিবেগ (Train & Speed)

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Best Ans:

প্রশ্ন: A train 800 meters long is running at a speed of 78 km/hr . If it crosses a tunnel in 1 minute, then the length of the tunnel ( in meters ) is :

78 km/hr = (78 × 1000) / 60 m/min = 1300 m/min

In 1 minute it travels 1300 m/min

1300 = 800 + length of tunnel

length of tunnel = 1300 - 800 = 500 merer.

7 years ago

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Md Azizur Rahman

FOUNDER OF SATT

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A train 800 meters long is running at a speed of 78 km/hr . If it crosses a tunnel in 1 minute, then the length of the tunnel ( in meters ) is :

প্রশ্ন: A train 800 meters long is running at a speed of 78 km/hr . If it crosses a tunnel in 1 minute, then the length of the tunnel ( in meters ) is :

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