Question 329352
let the distance from home to school be x
jack speed = 9km/h
distance =x
time taken = x/9 hours
Paul speed = 5km/h
distance = x-0.5 km
these times are same
..
x/9 = x-0.5/5
5x/9=x-0.5
x-5x/9=0.5
9x-5x/ 9 =0.5
4x/9=0.5
4x=4.5
x=4.5/4
x=1.125 km distance to school