A train 100m long is moving with a speed of `72 kmh^(-1)`. Calculate the time taken by the train to cross a bridge `0.5 km` long?

Explanation

To solve the problem of calculating the time taken by a train to cross a bridge, we can follow these steps:

### Step 1: Understand the problem
We have a train that is 100 meters long, moving at a speed of 72 km/h, and we need to find out how long it takes for the train to completely cross a bridge that is 0.5 km long.

### Step 2: Convert the length of the bridge to meters
The length of the bridge is given as 0.5 km. We need to convert this to meters:
\[
...