Two ships, Party A and Party B, set off from two ports in AB at the same time on 1.2, and headed for each other. After 1.5 hours, they will meet at a distance of 6 kilometers from the midpoint. The speed of a is B.
Solution: Let the speed of B be x km/h and the speed of A be 1.2x km/h,
( 1.2x-x)× 1.5=6×2
0.2x× 1.5= 12
0.3x= 12
x= 12÷0.3
x=40
The speed of a =1.2x =1.2x40 = 48km/h.
Distance between two ports = (1.2x+x) ×1.5 = 2.2x×1.5 = 3.3x = 3.3x48 =158.4km.
A: The distance between the two ports is 158.4 km.