Chen Bing, Wang Hong, and Zhang Ye were taking a stroll on the 560-meter circular track. Chen Bing walked 80 meters per minute, Zhang Ye walked 70 meters per minute, and Wang Hong walked 80 meters per minute.

140 meters away. At first, the three of them set off from the same place and headed in the same direction. How long had it been since the three of them met again? How many laps did the three of them run when they met?

Answer 1

According to the description of the question, Chen Bing, Wang Hong, and Zhang Ye were taking a walk on a 560-meter circular track. We can use these numbers to make deductions and calculations.

Chen Bing walked 80 meters per minute, so he walked 560/60=8 minutes.

Zhang Ye walked 70 meters per minute, so he walked 560/60=9 minutes.

Wang Hong walked 88 meters per minute, so he walked 560/60=95 minutes.

Since the three students were walking 80 or 90 meters per minute, it could be inferred that their speed should be (80+90+88)/60=18 meters per minute.

Therefore, Chen Bing, Wang Hong, and Zhang Ye's speed should be 18 m/min, which is 18 x 6 = 108 m on the circular track.