Pearl cake

4 inch (serves 4) 5 inch 2 layer (serves 6-10) 5 inch 3 layers (tall- serves 10-15) 6 inch 2 layer (serves 10-15) 6 inch 3 layers (tall-serves 18-24) 8 inch 2 layer (serves 16-25) 8 inch 3 layers (serves 30-35) 10 inch 2 layers (serves 30-40) 10 inch 3 layers (serves 40-50) 12 inch 2 layers (serves 50-60)