Meeting Time
1. **State the problem:** Ben and Kevin start driving towards each other from two points 120 km apart. Ben drives at 45 kph and Kevin at 35 kph. We need to find the time when they will meet.
2. **Analyze the situation:** Since they drive towards each other, their relative speed is the sum of their speeds.
3. **Calculate relative speed:**
$$45 + 35 = 80 \text{ kph}$$
4. **Use the formula for time:**
$$\text{time} = \frac{\text{distance}}{\text{speed}}$$
5. **Calculate time to meet:**
$$\text{time} = \frac{120}{80} = 1.5 \text{ hours}$$
**Answer:** Ben and Kevin will meet after $1.5$ hours.