Question

the Length breadth and height of a room and 9M, 5.6 M and 3.5 M respectively find (i)area of four walls of room (ii) number of tiles required to cover the floor of the room, if the size of a each tile is 90 cm by 50 cm

Answer 1

Answer: (i) 102.2 m²

              (ii) 112 tiles

Step-by-step explanation:

length: 9m

breadth: 5.6m

height: 3.5m

(i) area of four walls = 2(3.5  × 9 + 3.5 × 5.6)

= 2(31.5+19.6)

=102.2 m²

(ii) area of the floor = 9 × 5.6 = 50.4 m²

and area of tile = 0.9 × 0.5 = 0.45 m²

number of tiles required is 50.4 ÷ 0.45 = 112 tiles

Answer 2

Step-by-step explanation:

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