Answer File added

There should not be more than 80 chars in a line. Benefits of having 80 chars limit ([Ref](http://stackoverflow.com/questions/903754/do-you-still-limit-line-length-in-code)):
* **Readability** - You don't have to scroll over horizontally when you want to see the end of some lines.
* **Saves from horizontal scrolling**: Horizontal scrolling is a tedious job.
* **Printing** - Most code that you are working on does not get printed out on paper, but by limiting the number of characters you can ensure that formatting doesn't get messed up when printed.
* **Past editors**- Not sure about this one, but I suspect that at some point in the distant past of programming, (at least some) text editors may have been based on a fixed-width buffer.

[More about how the magic number **80** came.](http://programmers.stackexchange.com/questions/148677/why-is-80-characters-the-standard-limit-for-code-width)