Question

Pat can shelve a cart full of books in the library in 24 minutes and Kevin can do it in 30 minutes. How long will it take them if they work together.

Answer 1

i mean 6 subtracting 54 adding

Explanation:

i say this because well it says by themseves thats there time if they are working together you are reducing that time mathematically but it can also be addding in some way depending on whether the type of math problem.