Wang and Wang walk from ab at the same time. After 6 minutes, they walk 350 meters away from the meeting point. Wang takes 10 minutes to complete the whole journey. Wang walks 125 meters per minute. How many kilometers are there between AB and Wang?

Wang and Wang walk from ab at the same time. After 6 minutes, they walk 350 meters away from the meeting point. Wang takes 10 minutes to complete the whole journey. Wang walks 125 meters per minute. How many kilometers are there between AB and Wang?


Let the total distance be s
S=6*(125+S/10)-350
0.4S=400
S=1000



If the number of possible pilot stations is 20, the number of pilot stations arranged by one or two pilot stations is 20


13/21
8/21
In sequence
one
two
,
two
three
,
three
five
,
five
eight
,… ,
Fn
Fn+1
In the middle,
We can get: F4 = 5, F5 = 8, F6 = 13, F7 = 21, F8 = 34