设上坡路长x千米,平路长2xm,下坡路长3xm.
(x/(4.8))+(x/(4.8))÷(4/5)+(x/(4.8))÷(4/5)÷(5/6)=1+(1/24)
x+(5/4)x+(3/2)x=5
x=4/3
则平路长2×(4/3)=8/3(m),下坡路长3×(4/3)=4(m)
则这段路全长是(4/3)+(8/3)+4=8(m)
答:这段路全长为8m.
设上坡路长x千米,平路长2xm,下坡路长3xm.
(x/(4.8))+(x/(4.8))÷(4/5)+(x/(4.8))÷(4/5)÷(5/6)=1+(1/24)
x+(5/4)x+(3/2)x=5
x=4/3
则平路长2×(4/3)=8/3(m),下坡路长3×(4/3)=4(m)
则这段路全长是(4/3)+(8/3)+4=8(m)
答:这段路全长为8m.