A car travels at a speed of 50 m/sec. for 7 hours. What is the distance (in km) travelled by the car?

Options

A. 1250
B. 1260
C. 1300
D. 1200

Answer

To solve the problem of finding the distance traveled by a car that moves at a speed of 50 m/sec for 7 hours, we can follow these steps:

### Step-by-Step Solution:

1. **Convert Speed from m/sec to km/hr:**
- The speed is given as 50 m/sec. To convert this to kilometers per hour (km/hr), we use the conversion factor:
\[ \text{Speed in km/hr} = \text{Speed in m/sec} \times \frac{18}{5} \]
- Substituting the given speed:
\[ \text{Speed in km/hr} = 50 \times \frac{18}{5} = 50 \times 3.6 = 180 \text{ km/hr} \]

2. **Calculate Distance:**
- The formula for distance is:
\[ \text{Distance} = \text{Speed} \times \text{Time} \]
- We have converted the speed to 180 km/hr, and the time is given as 7 hours. Now we can calculate the distance:
\[ \text{Distance} = 180 \text{ km/hr} \times 7 \text{ hr} = 1260 \text{ km} \]

3. **Final Answer:**
- The distance traveled by the car is **1260 km**.