Using 'each' to print chunks of an array

Question

Working through Day 2 of Ruby in "7 Languages in 7 Weeks" - the answer to the second question seems acceptable, the first one feels quite wrong. Any suggestions?

1. Print the contents of an array of sixteen numbers, four numbers at a time, using just each.

   group = 0
   
   (1..16).each do |x| 
       print x
       group = group + 1
       if group % 4 == 0
           puts
           group = 0
       end
   end
   

2. Now, do the same with each_slice in Enumerable (copied directly from http://ruby-doc.org/core-1.9.3/Enumerable.html#method-i-each_slice)

   (1..16).each_slice(4) {|x| p x}
   

Answer 1

No need to save group x already saving it.

(1..16).each do |x|
  print x
  puts if x % 4 == 0
end