Question

AB两地相距36千米,甲从A乙从B同时出发相向而行,相遇后甲再走2.5小时到达B,乙再走1.6小时到达A,求甲乙两人的速

Answer 1

设甲速为x,乙速为y,相遇时各走了t小时

2.5x+1.6y = 36

t = 2.5x/y = 1.6y/x

y^2 = (2.5/1.6)x^2

y = 5x/4

2.5x + 1.6(5x/4) = 36

x = 8

y = 5x/4 = 10

甲速为8千米/时,乙速为10千米/时