The difference between the travel distances of Party A and Party B is 2× 2 = 4 km.
The second time we met, we walked three distances a and B.
That is, the distance difference between a and b is 4× 3 = 12 km.
When they met for the second time, both A and B had already passed the distance between A and B..
So we take the lengths of a and b at the same time. Their distance difference is constant.
After subtracting the length of a and b; B's journey is 4 kilometers.
After subtracting the length of a and b; Obviously, the distance traveled by A can be calculated as:12+4 =16 ~ km.
After subtracting the length of a and b; The distance taken by b is the same as the distance after subtracting the length of a and b; The sum of the distances traveled by A is the distance between A and B.
12+4+4 = 20km.
Formula: 2× 2 = 4 km.
4× 3 =12km
12+4 = 16 (km)
12+4+4 = 20km.
A: A and B are 20 kilometers apart.
Answer over!