a train of length 200 metre is running with a speed of 90km/hr. in how much time will it crosses a person sitting in another train which is moving ahead with a Speed of 70km/hr
Answers
Answered by
1
36 secs
Step-by-step explanation:
their relative speed(both moving in same direction) = 90-70 = 20km/hr = 20 × 5/18
= 100/18 m/s
required time=200/100/18 =36 sec
Similar questions