The width and effective depth of a reinforced beam are 300 mm and 500 mm respectively. The values of stresses in concrete and steel are 4 N/mm2 and 140 N/mm2 respectively due to the forces acting on the beam. The beam is made of M15 concrete and mild steel. What will be the depth of the neutral axis? Take m = 19.
1
142.5 mm
2
202 mm
3
168 mm
4
data is insufficient