A Taekwondo hall is 30 m long, 20 m wide and 5 m high.It contains four windows of size 2.5 m × 2 m each and two doors of size 1.5 m × 4 m each. (i) How many player's-posters are required to hang on the walls at 3 posters per 108 sq. meters? (ii) How many taekwondo mats are required to pave on the floor at 5 mats per 15 sq. meters?
