Question : A passenger train, 150 m long, is travelling at a speed of 36 km/hr. If a man is cycling in the direction of a train at 9 km/hr, the time taken by the train to pass the man is:
Option 1: 10 seconds
Option 2: 15 seconds
Option 3: 18 seconds
Option 4: 20 seconds
Correct Answer: 20 seconds
Solution : Distance to be covered = 150 m Relative speed = 36 – 9 = 27 km/hr = 27 × $\frac{5}{18}$ = $\frac{15}{2}$ m/s $\therefore$ Time = $\frac{\text{length of the train}}{\text{Relative Speed}}$ = $\frac{150}{\frac{15}{2}}$ = 20 seconds Hence, the correct answer is 20 seconds.
Result | Eligibility | Application | Selection Process | Cutoff | Admit Card | Preparation Tips
Question : A train 150 m long takes 20 seconds to cross a platform 450 m long. The speed of the train (in km/hr) is:
Question : A train travelling at the speed of $x$ km/hr crossed a 300 m long platform in 30 seconds and overtook a man walking in the same direction at 6 km/hr in 20 seconds. What is the value of $x$?
Question : A train crosses two persons travelling at 4 km/hr and 6 km/hr in the same direction in 12 sec and 14 sec, respectively. The speed of the train is ________.
Question : A goods train 350 m long passes through a tunnel of 1250 m in 80 seconds. What is the speed of the train?
Question : A man goes from place A to B at a speed of 12 km/hr and returns from B to A at a speed of 18 km/hr. His average speed for the entire journey is:
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile