Question

A bike and the train are running at a speed of 15km/hr and 70km/hr. The length of the train is 200m.Find the time taken by the train to cross the bike.

Answer 1

Answer:

13 SEC

Step-by-step explanation:

Speed of the train relative to bike (70 - 15) = 55km/hr = 55 x 5/18 m/sec = 275/18 m/sec

Time taken to cross the bike = time taken to cross 200 m at 275/18 m/sec

= 200 x 18/275 = 8 x 18/11 = 13.09 seconds.

Hence the answer is 13 seconds(approximately)

Answer 2

Answer:

13 seconds

Step-by-step explanation:

Speed of the train relative to bike (70 - 15) = 55km/hr = 55 x 5/18 m/sec = 275/18 m/sec

Time taken to cross the bike = time taken to cross 200 m at 275/18 m/sec

= 200 x 18/275 = 8 x 18/11 = 13.09 seconds.

Hence the answer is 13 seconds(approximately)