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November 25, 2014

November 25, 2014

Posted by **Anonymous** on Thursday, January 3, 2013 at 2:21am.

- maths -
**Steve**, Thursday, January 3, 2013 at 4:43amtotal age of 30 students: 420

total age of 5 dropouts: 75

total age of remaining 25 students: 345

mean age: 13.8

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