Question 524698
City time + country time = 3 hours

t=d/r

D(city)=x
speed = 24

D(country)=(147-x)
speed = 54

{{{(x/24)+((147-x)/54)=3}}}

LCD = 216 Multiply by LCD

{{{(9x+(4*147)-4x=216*3}}}

9x+588-4x=648
5x=60
/5
x=12 miles in the city
Balance =>147-12= 135 miles in country