Question

A train 25 meter long passes a pole in 12 second. What is the speed of the train in Km/hour
a) 75Km/hr
b) 72Km/hr
c) 135Km/hr
d) 125Km/hr​

Answer 1

Answer:

The answer is neither of the options. It is 7.5 Km/hr

Step-by-step explanation:

If a train of 25m long passes a pole in 25 sec, it's speed is 25/12 m/sec. Converting the m/sec to Km/hr we multiply with 18/5

$= \frac{25}{12} \times \frac{18}{5}$

= 7.5 Km/hr