Given :
The Ironman endurance race has a 2.4 miles swim.
Javier can swim 0.5 miles in 20 minutes.
To Find :
How much time in hours it takes to complete the race.
Solution :
Speed of Javier :

Let, time taken to cover 2.4 miles is t .
So,

Hence, this is the required solution.
Answer:
Step-by-step explanation:
It’s the second one because 0.5 is like 50% then 3/4 is like 75 and then the other is simply 80%