Given:
Total distance = 21.87 km
Distance covered by Forrest = 14.68 km
So, the distance covered by Jenny = Total distance - distance covered by Forrest
= 21.87 - 14.68
1 11 7 17 /2/1./8/7− 1 4. 6 8−−−−−−− 0 7. 1 9−−−−−−−
∴ Jenny covered a distance of 7.19 km.