If the permissible compressive and tensile stresses in a singly reinforced beam are 50kg/cm2 and 1400kg/cm2 respectively and the modular ratio is 18, the percentage of the steel required for an economic section is

If the permissible compressive and tensile stresses in a singly reinforced beam are 50kg/cm2 and 1400kg/cm2 respectively and the modular ratio is 18, the percentage of the steel required for an economic section is

a) 0.496%

b) 0.596%

c) 0.696%   (Ans)

d) None of these