Final answer:
Susan and Mary together can type 75 pages in 30 minutes. Susan types 60 pages while Mary types 15 pages in that duration.
Step-by-step explanation:
The question is asking how many pages both Susan and Mary can type together in a span of 30 minutes.
First, we need to find out how many pages each of them can type in 30 minutes individually, and then add those numbers to get the total pages they can type together.
Susan can type 10 pages in 5 minutes.
To find out how many pages she can type in 30 minutes,
we multiply the number of pages she can type in 5 minutes by 6 (since 30 minutes is 6 times longer than 5 minutes).
10 pages in 5 minutes x 6 = 60 pages in 30 minutes.
Mary can type 5 pages in 10 minutes.
To find out how many pages she can type in 30 minutes,
we multiply the number of pages she types in 10 minutes by 3 (since 30 minutes is 3 times longer than 10 minutes).
5 pages in 10 minutes x 3 = 15 pages in 30 minutes.
Finally, we add the number of pages Susan can type in 30 minutes to the number
Mary can type in the same amount of time.
60 pages + 15 pages = 75 pages together in 30 minutes.