Which is more readable

gistfile1.rb

      def sum_data(index, page, data)
        t = []
        page.each do |p|
          if t.length == 0
            t = get_data_array(p, index, data)
          else
            temp = get_data_array(p, index, data)
            t.each_index do | i |
              t[i] += temp[i]
            end
          end
        end
        t
      end

def sum_data(index, page, data)
  page.reduce(get_data_array(p, index, data)) do |seed, p|
    temp = get_data_array(p, index, data)
    seed.each_index { |i|  seed[i] += temp[i] }
    seed
  end
end

      def sum_data(index, page, data)
        t = []
        page.each do |p|
          t = get_data_array(p, index, data).zip(t).collect { |x| x.flatten().inject{|sum,x| sum + x.to_i }}
        end
        t
      end