Students, you must all know the story of "tortoise and rabbit race"! The proud rabbit dozed off on the road and was left behind by the tortoise. Today, the little rabbit had the cheek to come to the tortoise's house.
"Brother Tortoise, open the door!"
"Oh, it's the white rabbit sister! You won't come to race with me! "
"exactly, letusgo!"
When the referee monkey gave the order, the tortoise and rabbit began to run like hell. After a long wait of five minutes, the result was finally announced. The rabbit learned the lesson from the last competition and won the championship with absolute advantage. In this game, the rabbit ran very far. When it reaches the finish line, the tortoise is 100 meters. The tortoise doesn't believe it. He suggested that the rabbit should take a step back from the starting line of 100 meters and race again, saying that they could reach the finish line at the same time. The rabbit agreed, but the rabbit still won.
The tortoise was puzzled and invited the goat doctor. "Doctor, do you know what's going on?" Dr. Goat was deep in thought and said, "The rabbit runs 250 meters per minute, but you can only run 20 meters per minute. She ran 1000 meters, you ran 900 meters, and it took the same time, while the rabbit ran11000 meters in less time than you did, so the rabbit still won. " "Doctor, if I arrive with the rabbit at the same time, how many meters should I run before her?"
"It takes 4 minutes for the rabbit to run 1000m, but you only ran 80m in 4 minutes. You should run 920m ahead of the rabbit."
"Thank you very much, take care, Dr Goat ..."