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August 2, 2015

Homework Help: math

Posted by Anonymous on Wednesday, January 1, 2014 at 6:34pm.

the 20 students in Mr. Wolf's 4th grade class are playing a game in a hallway that is lined with 20 lockers in row. the 1 student starts with the first locker and goes down the hallways and opens all lockers. the 2 student starts with the second locker and goes down the hallway and shuts every others lockers. the third student starts with the third locker and changes every third locker: if the locker is open the student closes it, and if it is closed the student open it. the fourth student starts with the fourth locker and changes every fourth locker: if the locker is open the student closes it, and if it is closes the student opens it. THis process continues until all 20 students in the class have walked down the hallway. a.) which lockers are still open at the end of the game?. b.) which lockers were touched by the only two student?. c.) which lockers were touched by only three students?.d.) which lockers were touched the most?

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