300 m long train crosses a pole in 24 sec. What is the speed of the tr

1.	300 m long train crosses a pole in 24 sec. What is the speed of the train in km/hr ?1) 45 km/hr2) 60 km/hr 3) 36 km/hr 4) 42 km/hr.
Answer» The train covers 300M in 24 seconds. If we divide 300 by 24 300/24 = 12.5m/sec We have to CONVERT this to PER hour, We can do that by MULTIPLYING 12.5 by 18/5 12.5 x 18/5 12.5 x 3.6 45 km/hr The answer is (1) 45 km/hr

300 m long train crosses a pole in 24 sec. What is the speed of the train in km/hr ?1) 45 km/hr2) 60 km/hr 3) 36 km/hr 4) 42 km/hr.

Answer»

The train covers 300M in 24 seconds.

If we divide 300 by 24

300/24 = 12.5m/sec

We have to CONVERT this to PER hour,

We can do that by MULTIPLYING 12.5 by 18/5

12.5 x 18/5

12.5 x 3.6

45 km/hr

The answer is (1) 45 km/hr