No math. Since we don't know the spoon size, we can assume it's equal to the quantity of a liquid in a glass (of coarse a glass should take this additioal amount).
Now put both into one glass, mix and take half back. Here we are - concentration is equal.
A Book For All Reasons Bernard Cole1 Comment Robert Oshana's recent book "Software Engineering for Embedded Systems (Newnes/Elsevier)," written and edited with Mark Kraeling, is a 'book for all reasons.' At almost 1,200 pages, it ...