Bed area =1.5 *1.2 =1.8m2.

The area occupied by the table = 1.5*0.6=0.9 square meters.

The area occupied by the chair =0.4*0.35=0. 14 square meter.

Area occupied by wardrobe = 0.9 * 0.6 = 0.54m2..

Open space area = 9.88-1.8-0.9-0.14-0.54 = 6.5 square meters.