Question 23If the margin made on an article costing $C$ dollars and selling for $S$ dollars is $M=\dfrac1nC,$ then the margin is given by:$M=\dfrac1{n-1}S$$M=\dfrac1nS$$M=\dfrac n{n+1}S$$M=\dfrac1{n+1}S$$M=\dfrac n{n-1}S$