There are two buildings P and Q. If 143 persons are sent from P to Q, then the number of persons in each building is the same. If 186 persons are sent from Q to P, then the number of persons in P is double the number of persons in Q. How many persons are there in building P?
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.
Richard van der Merwe
"Full form of MATHS M-mind A-aim T-trick H-habits S-serious "