In the above question (no. 34) what is the speed of postman in mile/h?

Options

A. 22.37
B. 30.08
C. `28.30`
D. 38.12

Answer

To find the speed of the postman in miles per hour from kilometers per hour, we can follow these steps:

### Step 1: Identify the given speed in kilometers per hour.
The speed of the postman is given as 36 km/h.

### Step 2: Use the conversion factor from kilometers to miles.
We know that 1 kilometer is equal to approximately 0.621 miles.

### Step 3: Multiply the speed in kilometers by the conversion factor.
To convert 36 km/h to miles per hour, we multiply:
\[ \text{Speed in miles per hour} = \text{Speed in kilometers per hour} \times \text{Conversion factor} \]
\[ \text{Speed in miles per hour} = 36 \, \text{km/h} \times 0.621 \, \text{miles/km} \]

### Step 4: Perform the multiplication.
Calculating the above:
\[ 36 \times 0.621 = 22.356 \]

### Step 5: Round the result to two decimal places.
Rounding 22.356 gives us approximately:
\[ 22.37 \, \text{miles/h} \]

### Final Answer:
The speed of the postman is approximately **22.37 miles per hour**.

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