I am thinking of a two digit number, AB, such that A x B=AB/2, and A+B=AB/4. What is the number AB?
"Pure mathematics is, in its way, the poetry of logical ideas."
Welcome to the forum.
In mathematics, you don't understand things. You just get used to them.
I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.