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Q.

A train having a length of Question Image passes through a tunnel of Question Image in 2 minutes. find the speed of the train in Question Image ?


 

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a

75km/hr

b

83.98km/hr

c

87hm/hr

d

96km/hr

answer is B.

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Detailed Solution

Concept: Speed is the ratio of distance traveled to time spent traveling. Because it has just one direction and no magnitude, speed is a scalar quantity.

Let the speed of the train be Question Image.

Given the length of the train Question Image

Length of the tunnel Question Image

Time is taken to pass the tunnel Question Image minute Question Image seconds

Question Image

Question Image

Speed of the train in Question Image

Speed of the train Question Image.


 

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