Using ACI, determine the minimum permissible total thickness required for the slabs in panel 1 and 2 for the floor system shown in figure. Edge beams are used around the building perimeter and drop panels are used. The concrete in the slab is the same as that used in the edge beams, fy = 420 Mpa. Column dimensions 500x500 mm, L1 = 6 m, and L2 = 5.5 m.