Final answer:
To type 42 pages, it would take approximately 7 hours.
Step-by-step explanation:
To find out how many hours would be required to type 42 pages, we can set up a proportion using the given information.
We know that 4 hours are required to type 24 pages. So, we can say that 4 hours is to 24 pages as x hours is to 42 pages.
This can be expressed as 4/24 = x/42. Solving for x, we find that x = (4/24) * 42 = 7 hours.