Question

A train whose length is 150 m , passes a telegraph pole in 10 sec .Find the speed of the train in km/h.​

Answer 1

Answer:

54km/h

Step-by-step explanation:

First, you take that 150 m of a train was passed in 10 sec. This means the speed of the train was 150m/10s. You can simplify this to 15m/s. You need km/h so you can multiply both the meters and seconds by 60 first to get m/minutes. You will get 900m/minute. Then to get /hour you have to multiply by 60 again. You will then get 54,000m/hr, which is, 54km/hr.

Notes: 1 minutes = 60 seconds, 1 hour = 60 minutes, 1km = 1,000m, m = meter, and km = kilometer