48448953 about objects master

What I learned. 

IRB continues to be a very useful tool for the Ruby Koans exercises. 

There is a pattern that small objects integers follow. 

number x 2 + 1, for example,   0 x 2 + 1 = 1, 1 x 2 + 1 = 3, 100 x 2 + 1 = 201