Keywords: traffic competition, grade three, primary school
This article is suitable for: the third grade of primary school.
Composition source:
This essay is about the third grade of primary school. The topic is "math diary-Traffic Competition". Everyone is welcome to contribute enthusiastically.
Math diary-Transport Competition
People used to say that Beijing is a far place, and it takes at least a few days and nights to get there by train. Now the technology is more and more advanced and the transportation is more and more convenient. It only takes a few hours to go anywhere. And since the appearance of high-speed rail, it will take more than two hours to get to Beijing!
It is about 700 kilometers from Zhengzhou to Beijing. What kind of transportation is the most economical for us during the Spring Festival? Today, we will let the high-speed rail, planes, motor trains and cars compete!
The first plane appeared, which only takes 80 minutes to reach Beijing, the fastest and the most expensive: 700 yuan! It is 700 kilometers from Zhengzhou to Beijing, 700/700 = 1 (yuan/km), which is equivalent to 65438+ 1 km away from 0 yuan, which is the most vulnerable.
Next is the high-speed train, which takes 2.5 hours to get to Beijing, but the price is cheaper than the plane, 509 yuan, 509/700 = 0.73 yuan/km, equivalent to 0.73 yuan/km, which is less affected by the weather.
The third appearance is the bullet train, which takes twice as long to get to Beijing as the high-speed train, but the price is cheaper, 342,342/700 = 0.49 yuan/km, equivalent to 0.49 yuan/km; As for the car, the longest time to Beijing: 7 hours! The toll is relatively high, probably around 500 yuan (only counting the fuel fee, because the expressway does not charge tolls during the Spring Festival), 500/700 = 0.7 1 (yuan/km), which is equivalent to 0.765438+ 1 km in 0 yuan.
Through the calculation results, we can know that if you want to arrive in Beijing as soon as possible, you should fly; If you want to be the most economical, take the bullet train. After comprehensive comparison of various factors, I still choose to take the motor train. Because the train is the cheapest, and the time is not long or short, you can arrive in the morning and afternoon.
High-speed rail is the most advanced technology product in the world at present, which helps people on the journey to save a lot of time and shorten the distance between time and space. For example, it takes a half-day for Beijingers to come to Zhengzhou to eat a bowl of Huimian Noodles. I want to eat a bunch of Sugar-Coated Berry in Beijing, and it takes half a day to get there. This is something that people dare not think about before. The development of science and technology makes people's lives more and more convenient!