Which one of the following formulae based on the given diagram would be appropriate for measuring the elasticity of demand at point R?

A. $$\frac{{RS}}{{SB}} = \frac{{RS}}{{RA}} = \frac{{OU}}{{PU}}$$
B. $$\frac{{RS}}{{RA}} = \frac{{RS}}{{SB}} = \frac{{PU}}{{OU}}$$
C. $$\frac{{RA}}{{RB}} = \frac{{OQ}}{{OB}} = \frac{{PA}}{{PO}}$$
D. $$\frac{{RB}}{{RA}} = \frac{{QB}}{{OQ}} = \frac{{OP}}{{PA}}$$
Answer: Option D

Join The Discussion