Answer: 1 hour and 36 minutes
Explanation:
We can use the concept of the work formula, which states that the amount of work done is equal to the rate of work multiplied by time.
Let's start by finding the rate of work of each worker. We know that eight workers can load 4320 bricks in 1 hour, so the rate of work of each worker is:
rate of work = amount of work / time = 4320 bricks / (8 workers x 1 hour) = 540 bricks/hour
Now we want to know how long it would take for five workers to load the same amount of bricks. We can use the work formula again, but this time we know the rate of work and the amount of work, and we want to find the time:
amount of work = rate of work x time
Substituting the values we know:
4320 bricks = (540 bricks/hour) x time x 5 workers
Simplifying, we get:
time = 4320 bricks / (540 bricks/hour x 5 workers) = 1.6 hours or 1 hour and 36 minutes
Therefore, it would take 1 hour and 36 minutes for 5 workers to load 4320 bricks on the truck.