Modified moment of inertia of sections with a single web, is equal to moment of inertia of the section about Y-Y axis at the point of maximum bending moment and is multiplied by the ratio of

• area of compression flange at the minimum bending moment to the corresponding area at the point of maximum bending moment
• area of tension flange at the minimum bending moment of the corresponding area at the point of maximum bending moment
• total area of flanges at the maximum bending moment to the corresponding area at the point of maximum bending moment
• none of these.