Final answer:
To find the time it will take to download the rest of the file, we can use a proportion to solve for x. The time it will take to download the rest of the file is 30 minutes.
Step-by-step explanation:
To find the time it will take to download the rest of the file, we need to calculate the remaining percentage and then determine the amount of time it took to download the 25% of the file. Since Hal has already downloaded 25% of the file and the remaining percentage is 75%, we can set up the following proportion:
25% / 10 minutes = 75% / x minutes
Cross multiplying, we get: 25% * x minutes = 10 minutes * 75%
Converting 25% to a decimal, we have: 0.25 * x minutes = 0.75 * 10 minutes
Simplifying, we get: 0.25x = 0.75 * 10
Dividing both sides by 0.25, gives us: x = (0.75 * 10) / 0.25
Calculating, we find that x = 30 minutes.