A postman goes with a speed of 36 km/h what is the speed of postman in mile/h?

Options

A. 22.37
B. 30.08
C. 28.3
D. 38.12

Answer

To convert the speed of the postman from kilometers per hour (km/h) to miles per hour (mile/h), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the speed in km/h**:
The postman's speed is given as 36 km/h.

2. **Know the conversion factor**:
To convert kilometers to miles, we use the conversion factor:
\[ 1 \text{ kilometer} = 0.621371 \text{ miles} \]

3. **Set up the conversion**:
To convert 36 km/h to miles per hour, we multiply by the conversion factor:
\[ \text{Speed in miles per hour} = 36 \text{ km/h} \times 0.621371 \text{ miles/km} \]

4. **Perform the multiplication**:
Now, calculate the multiplication:
\[ 36 \times 0.621371 = 22.369356 \text{ miles/h} \]

5. **Round the result**:
We can round this result to two decimal places:
\[ 22.37 \text{ miles/h} \]

6. **Final answer**:
Therefore, the speed of the postman in miles per hour is approximately:
\[ \text{Speed} \approx 22.37 \text{ miles/h} \]