Final answer:
To calculate how long it took the man to walk 5.4 km, we need to find the total time it takes to walk 1 m and then multiply it by 5,400.
Step-by-step explanation:
To calculate how long it took the man to walk 5.4 km, we need to find the total time it takes to walk 1 m and then multiply it by 5,400 (since there are 1,000 m in 1 km and 5.4 km = 5,400 m).
First, let's determine how long it takes to walk 1 m. We know that the man walks at a rate of 96 paces per minute, and each pace is 0.625 m long. So, in one minute, he walks 96 * 0.625 = 60 m. Therefore, it takes him 1 minute to walk 60 m.
Now, we can calculate the total time to walk 5.4 km: 1 minute * 5,400 = 5,400 minutes.