A 360 metres long train crosses a pole in 80 seconds. What is the speed of the train ?

Options

A. 6.4 m/s
B. 3m/s
C. 4.5 m/s
D. Cannot be determined

Answer

To find the speed of the train, we can use the formula for speed, which is:

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

### Step-by-step Solution:

1. **Identify the Distance**:
The length of the train is given as 360 meters. Since the train crosses a pole, the distance it covers while crossing the pole is equal to its length.
\[ \text{Distance} = 360 \text{ meters} \]

2. **Identify the Time**:
The time taken to cross the pole is given as 80 seconds.
\[ \text{Time} = 80 \text{ seconds} \]

3. **Calculate the Speed**:
Now, we can substitute the values of distance and time into the speed formula.
\[ \text{Speed} = \frac{360 \text{ meters}}{80 \text{ seconds}} \]

4. **Perform the Division**:
To find the speed, we divide 360 by 80.
\[ \text{Speed} = \frac{360}{80} = 4.5 \text{ meters per second} \]

5. **Final Answer**:
The speed of the train is 4.5 meters per second.