A car travelling at a speed of 45 `km//h` takes 20 minutes to reach its destination. What distance has the car travelled?

Answer

To find the distance travelled by the car, we can use the formula:

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

### Step 1: Convert the time from minutes to hours
The car takes 20 minutes to reach its destination. Since speed is given in kilometers per hour (km/h), we need to convert the time into hours.

\[ \text{Time in hours} = \frac{20 \text{ minutes}}{60 \text{ minutes/hour}} = \frac{1}{3} \text{ hours} \]

### Step 2: Use the speed of the car
The speed of the car is given as 45 km/h.

### Step 3: Calculate the distance
Now, we can substitute the values into the distance formula:

\[ \text{Distance} = \text{Speed} \times \text{Time} = 45 \text{ km/h} \times \frac{1}{3} \text{ hours} \]

### Step 4: Perform the multiplication
Now, we multiply:

\[ \text{Distance} = 45 \times \frac{1}{3} = 15 \text{ km} \]

### Final Answer
The distance travelled by the car is **15 kilometers**.

---