Ratio of the averages of first five (05) odd and first five (05) even natural numbers will be:

3 : 2 2 : 3 6 : 5 5 : 6

5 : 6

Average of first five odd numbers= \(\frac{1\;+\;3\;+\;5\;+\;7\;+\;9}{5}\) = 5 Average of first five even numbers= \(\frac{2\;+\;4\;+\;6\;+\;8\;+\;10}{5}\) = 6 Required ratio= 5 : 6