GoHero is the easiest way to customize your WooCommerce store. No coding requires for editing the labels, creating product tabs, inquiry forms, etc, and a bunch of more features. The awesome admin interface for each section is really fun to use. A very lightweight plugin using WooCommerce hooks.
Results are saved as custom post type with all information like total marks, obtained marks, correct answers etc. Once result is save it can be sent to other people via email from result page in PRO version.