Chapter 11 Driving On Expressways Magic Number Puzzle
Driving on expressways is one of the most convenient ways to travel long distances. However, it also requires a lot of attention and focus from the driver. One of the challenges that drivers face on expressways is the "Magic Number Puzzle". This puzzle involves finding the optimal speed to drive at to reach your destination in the fastest time possible. In this article, we will explain the "Magic Number Puzzle" and how you can use it to improve your driving on expressways.
What is the "Magic Number Puzzle"?
The "Magic Number Puzzle" is a calculation that drivers can use to determine the optimal speed to drive at on an expressway to reach their destination in the fastest time possible. The puzzle is based on the concept that driving too fast or too slow can actually slow you down and increase your travel time. The "magic number" is the speed at which you can travel to reach your destination in the shortest amount of time, while still obeying the speed limit.
How to calculate the "Magic Number"
To calculate the "Magic Number", you will need to know three things: the distance you need to travel, the speed limit on the expressway, and the time you want to arrive at your destination. Once you have this information, you can use the following formula:
Magic Number = (Distance / Time) + Speed Limit
For example, if you need to travel 200 miles, the speed limit is 70 mph, and you want to arrive at your destination in 3 hours, the "Magic Number" would be:
Magic Number = (200 / 3) + 70 = 136.67 mph
However, it is important to note that this number is not the speed you should actually drive at. It is simply the optimal speed at which you can travel to reach your destination in the shortest amount of time. You should always obey the speed limit and drive safely.
Tips for driving on expressways
Driving on expressways can be intimidating, especially for new drivers. Here are some tips to help you drive safely on expressways:
- Make sure your vehicle is in good condition and has enough fuel for the journey.
- Observe the speed limit and stay in the right lane unless you are passing another vehicle.
- Use your turn signals when changing lanes or exiting the expressway.
- Keep a safe following distance from the vehicle in front of you.
- Stay alert and focused on the road ahead. Avoid distractions such as texting or talking on the phone.
- If you feel tired or drowsy, take a break and rest before continuing your journey.
- Be patient and courteous to other drivers.
Conclusion
The "Magic Number Puzzle" is a useful tool for drivers to determine the optimal speed to travel on an expressway to reach their destination in the shortest amount of time possible. However, it is important to remember that you should always obey the speed limit and drive safely. By following the tips outlined in this article, you can drive confidently and safely on expressways.
