Here are multiple solutions to the problem explained pretty clearly: http://mathforum.org/library/drmath/view/55618.html http://mathforum.org/library/drmath/vie

Here are multiple solutions to the problem explained pretty clearly: http://mathforum.org/library/drmath/view/55618.html http://mathforum.org/library/drmath/view/55618.html This was a fun one to work out on paper though.