A reinforced concrete beam has a width of 300 mm and an effective depth of 520mm to the centroid of tension reinforcements. The steel reinforcements will be placed in a single layer arrangement. Concrete strength fc'=32 MPa. Design as a singly-reinforced beam and use 2010 NSCP. 1. Determine the largest steel ratio allowed by the code for the given section if fy =345 MPa. 2. Determine the maximum steel ratio of the section if the beam is characterized as tension- controlled. Use fy = 345 MPa. 3. If fy = 415 MPa, determine the maximum number of 25mm bars that can be used for the given section for it to be tension-controlled.