SOLUTION: six students were given 20 minutes to clean up the classroom after an eraser fight. They were angry and named 3 other accomplices. The principal added the accomplices to the cleanu

Question 844770: six students were given 20 minutes to clean up the classroom after an eraser fight. They were angry and named 3 other accomplices. The principal added the accomplices to the cleanup crew and changed the time limit. How much time did she give them to complete the job?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
First find the one-student work rate. The 1 job is, "clean up the classroom".

six students needing 20 minutes means that 1 student needs minutes if working alone. This rate is job/minute.

The uniform rate equation for n number of students is for doing ONE job.

students to do the job.

minutes

Thirteen minutes 20 seconds
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