Ratio, Proportion and Variation

I have posted 10 questions in forum from this chapter
(http://www.cat4mba.com/forum/ratio-proportion-and-variation-1 )
and ‘ll posting 100+ questions in next couple of days.

So enjoying solving the RPV questions.

For the basics please refer to the notes @
http://www.cat4mba.com/math-e-book/ratio-proportion

And update it (or post if you have anything new) as applicable.