Fill in the blank question - no right answer

I've heard a lot about putting this on the roadmap for a while and haven't seen anything.  For everyone else on this thread here is what my team does.

We grab a word count using the XLIF files (we also have everything translated so this is a natural process), we estimate around 250 words per minute reading; which is less than the normal amount but it helps account for scrolling and the words not being in straight lines like a book.  We give 30 seconds for interactions and 1 minute for every quiz question, add it all up and give a +/- of about 25% to our community partners.

So if there are 1,000 words (4 minutes), 7 interactions (3.5 minutes), and 8 quiz questions (8 minutes), that's 4+3.5+8 = 15.5 minutes, communicated to our team that this training will take about 13 to 17 minutes.

Hope that helps, and potentially gets this on the roadmap :)