A train of length 600 metre crosses a platform of length 1000 metre in 80 seconds. What is the speed (in m/s) of the train?

Options

A. 20
B. 72
C. 16
D. 36

Answer

To find the speed of the train, we can follow these steps:

### Step 1: Calculate the total distance the train travels while crossing the platform.
The total distance is the sum of the lengths of the train and the platform.

- Length of the train = 600 meters
- Length of the platform = 1000 meters

Total distance = Length of the train + Length of the platform
Total distance = 600 meters + 1000 meters = 1600 meters

### Step 2: Identify the time taken to cross the platform.
The time taken for the train to cross the platform is given as 80 seconds.

### Step 3: Calculate the speed of the train.
Speed is calculated using the formula:

\[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} \]

Substituting the values we have:

\[ \text{Speed} = \frac{1600 \text{ meters}}{80 \text{ seconds}} \]

### Step 4: Perform the division to find the speed.
\[ \text{Speed} = 20 \text{ m/s} \]

Thus, the speed of the train is **20 m/s**.

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