2645. A steel plate d × b is sandwiched rigidly between two timber joists each D × B/2 in section. The steel will be (where Young’s modulus of steel is m times that of the timber)_________________? September 7, 2025 by Admin A. BD² + mbd²)/6D] B. BD3 + mbd3)/6D] C. BD² + mbd3)/4D] D. BD² + mbd²)/4D] ✅ The correct answer is option B.
