The decimal goes in between the 3 and the 7.
Hope I helped!
Effectively Jock gets 1km further every round of 1:10 hrs. After 8 rounds he has reached 8km (after just having floated back from 9 to 8). The next round he completes the journey without floating.
So total 9 hours of swim and 8*10 minutes of float, that's 10 hours and 20 minutes.
Answer:
1] x=4.21
2] 52.5
3] 3.82
4] 38.73
5] 32.005
6] 31.21
Step-by-step explanation:
See the picture, using Pythagorean’s theorem
