Mark can fill up a pitcher with water in the sink in 25 seconds. Marcy can fill the same pitcher from the outside hose in 17 seconds. How much longer will it take Mark to fill 15 pitchers than it will take Marcy at this rate?

It will take Mark 120 seconds longer than Marcy to fill the pitchers

Step-by-step explanation:

* lets explain how to solve the problem

- Mark can fill up a pitcher with water in the sink in 25 seconds

- Marcy can fill the same pitcher from the outside hose in 17 seconds

- Mark will fill 15 pitchers

- Marcy will fill the same 15 pitchers

* Lets calculate the time of each one to fill them

∵ Mark can fill up a pitcher with water in 25 seconds

∵ The number of pitcher is 15

∴ The time to fill them = 15 * 25 = 375 seconds

∵ Marcy can fill the same pitcher in 17 seconds

∵ The number of pitcher is 15

∴ The time to fill them = 15 * 17 = 255 seconds

* Lets find how much longer Mark will take to fill the pitchers more

than Marcy will take

∵ Mark will fill them in 375 seconds

∵ Marcy will fill them in 255 seconds

∴ Mark will take = 375 - 255 = 120 seconds longer than Marcy

* It will take Mark 120 seconds longer than Marcy to fill the pitchers