2123. If the modular ratio is , steel ratio is and overall depth of a beam is , the depth of the critical neutral axis of the beam, is___________________? September 7, 2025 by Admin A. [m/(m – r)] d B. [m/(m + r)] d C. [(m + r)/ m] d D. [(r – m)/m] d ✅ The correct answer is option B.
