Alexandra and chi compete in an olympic-type triathlon consisting of a 1.5 km swim, a 40 km bicycle ride, and a 10 km run. there are two transitions in the race where the participants take time to change from one mode of the race to another. their times from the race are shown. complete questions 1dash4 below.

alexandra

chi

swim

5 km/hr

6 km/hr

transition 1

4 minutes

5 minutes

cycle

15 km/hr

15 km/hr

transition 2

3 minutes

5 minutes

run

6 km/hr

7.5 km/hr