4 A room is 4.8 m long, 3.6 m broad and 2 m high. Find the cost oflayi

1.	4 A room is 4.8 m long, 3.6 m broad and 2 m high. Find the cost oflaying tiles on its floor and its four walls at the rate of? 100/ m
Answer» Dimensions of the room : Length ( l ) = 4.8 m , Breadth ( b ) = 3.6 m, Height ( h ) = 2 m i ) Area of the floor ( A1 ) = lb = 4.8 m × 3.6 m = 17.28 m² ---( 1 ) ii ) Area of four walls of the room ( A2 ) = 2( l + b )h = 2( 4.8 + 3.6 )× 2 = 2 × 8.4 × 2 = 33.6 m² ----( 2 ) iii ) Total area of laying tiles = A1 + A2 = 17.28 m² + 33.6 m² = 50.88 m² It is given that cost of tiles for 1m² = Rs 100 Cost laying tiles 50.88m² area = 100 × 50.88 = Rs 5088

4 A room is 4.8 m long, 3.6 m broad and 2 m high. Find the cost oflaying tiles on its floor and its four walls at the rate of? 100/ m

Answer»

Dimensions of the room :

Length ( l ) = 4.8 m ,

Breadth ( b ) = 3.6 m,

Height ( h ) = 2 m

i ) Area of the floor ( A1 ) = lb

= 4.8 m × 3.6 m

= 17.28 m² ---( 1 )

ii ) Area of four walls of the room ( A2 )

= 2( l + b )h

= 2( 4.8 + 3.6 )× 2

= 2 × 8.4 × 2

= 33.6 m² ----( 2 )

iii ) Total area of laying tiles = A1 + A2

= 17.28 m² + 33.6 m²

= 50.88 m²

It is given that cost of tiles

for 1m² = Rs 100

Cost laying tiles 50.88m² area

= 100 × 50.88

= Rs 5088