User contributions
- 18:20, 10 February 2011 (diff | hist) . . (+251) . . 2011 AMC 10A Problems/Problem 1 (→Solution)
- 18:05, 10 February 2011 (diff | hist) . . (+196) . . N 2011 AMC 10A Problems/Problem 5 (Created page with 'Without loss of generality, let there be 1 fifth grader. It follows that there are 2 fourth graders and 4 third graders. We have <math>\frac{(1)(10)+(2)(15)+(4)(12)}{1+2+4} = \f…')
- 18:02, 10 February 2011 (diff | hist) . . (+366) . . 2011 AMC 10A Problems (→Problem 5)
