SIMILARITY in figure (b) we get,\(\frac{\TEXT{c}}{\text{t}/\text{m}}=\frac{\text{n}}{\text{d}-\text{n}}\)\(\frac{\text{m}\times \text{c}}{\text{t}}=\frac{\text{n}}{\text{d}-\text{n}}\)Where,c: maximum stress in concretet: maximum stress in steelm: modular ratio = \(\frac{{{\text{E}}_{\text{s}}}}{{{\text{E}}_{\text{c}}}}\)n: depth of neutral AXISD: EFFECTIVE depth of the beam