Tortoise and Hare Racing New

Everyone knows the story of the tortoise and the hare! Last time, because the rabbit was too proud, the result was lost to the turtle. The rabbit felt that he was too faceless and decided to come back again for a 5.2-kilometer race to see how many minutes before he reached the finish line.

The crowd was very lively and lively. The drums and shouts rang out.

Prepare... Just listen to the "嘣", the little rabbit runs like a string of arrows. The tortoise is not to be outdone, and struggles to climb forward.

The little rabbit looked back at the backward tortoise and relaxed a lot in her heart. He wanted to sleep for a while, but as soon as he remembered the last painful lesson, he continued to run forward.

At this time, the referee looked at the watch: the rabbit ran 20 kilometers per hour, and the turtle only climbed 3 kilometers per hour, wow! The outcome seems to be no suspense.

The rabbit is a little proud. It runs while running. It runs for a minute, then plays for 15 minutes, runs for another two minutes, then plays for 15 minutes, then runs for three minutes and then for 15 minutes... so it runs all the way. , playing all the way. What about turtles? Still crawling forward.

The game has undergone subtle changes, and everyone is predicting who is the final winner.

According to the last game, everyone thought that the rabbit is proud and arrogant, this time lost! They made a bet and said that the turtle must win! Only Dr. Fox bet the rabbit to win. Dr. Fox’s move made all animal residents confused, saying that Dr. Fox was lost this time.

The reason why Dr. Fox is so sure that the bunny will win is that it is valid. Ducklings, puppies, kittens... patiently listening to the explanation of Dr. Fox, this is a sudden realization!

Finally, the bunny reached the finish line 13.4 minutes before the turtle reached the end. This time the bunny finally pulled back.

Why did the bunny win the tortoise while running? Let's listen to Dr. Fox's explanation!

It is necessary to first determine the time taken for the tortoise to reach the end point, first how many minutes before reaching the end point. Because they run 5.2 kilometers, the rabbit runs 20 kilometers per hour, and runs 20 ÷ 60 = 1/3 kilometers in one minute. The tortoise runs 3 kilometers per hour and runs 3÷60=1/20 kilometers in one minute. Turtles and rabbits run differently, the tortoise keeps running, so the time it takes for the turtle to run completely is 5.2÷1/20=104. When the rabbit walks and plays, he runs for 1 minute and then plays for 15 minutes, then runs for 2 minutes and then plays for 15 minutes, then runs for three minutes and then for another 15 minutes. The rabbit runs and plays regularly, assuming the rabbit is not like the turtle. Stop running and reach 5.2÷1/20=15.6. Because 1+2+3+4+5+0.6=15.6, the rabbit runs a total of 15.6+15×5=90.6 because 90.6∠104, so the rabbit first reaches the end. The rabbit reached the end point 104-90.6=13.4 earlier than the turtle reached the end.

Dr. Fox’s explanations have been heard repeatedly, not to mention that Dr. Fox has won all the bets in this competition.