Ahmed is thrice as good a workman as Balkar and takes 22 days less to complete a piece of work than Balkar takes. Find out time in which Balkar alone can complete the work.
Do not worry about your difficulties in mathematics, I assure you that mine are greater.
Albert Einstein
There is something I don't understand about algebra: It has been around for thousands of years, yet no one has ever found out what the value of "x" or "y" really is.