A, B from a, B phase to line, 2, a meeting, a speed increased by 20%, B speed increased by 30%, a to B, B distance A14 kilometers, two kilometers away

A, B from a, B phase to line, 2, a meeting, a speed increased by 20%, B speed increased by 30%, a to B, B distance A14 kilometers, two kilometers away

A starts from a and B starts from B. for the first time, a takes AB * 3 / 5, B takes AB * 2 / 5, a speed increases by 20%, B speed increases by 30%, the speed ratio of the two becomes [3 * (1 + 20%)]: [2 * (1 + 30%)] = 3.6:2.6 = 18:13, in the same time, the distance ratio of a and B is 18:13, a takes AB * 2 / 5, B takes AB * 3 / 5-14 [AB * 2 / 5]: [a