Question

a room is 4 m long and 3 m wide a carpet measuring 80 cm by 60 cm is laid in the middle find the area of the floor not carpetted​

Answer 1

Answer:

area of floor not carpeted= 11.52 m²

Step-by-step explanation:

area of room = L*B

= 4*3

= 12 m²

area of carpet= l*b

= 0.8*0.6

= 0.48 m²

non carpeted area= area of room - area of carpet

= 12-0.48

= 11.52 m²

Answer 2

Answer:

If the length and breadth of a room are 4m and 3 m respectively and if a carpet measuring 80 cm by 60 cm is laid in the middle of the floor, the area of the floor not carpeted is 11.5$m^{2}$

Step-by-step explanation:



Given,

Length of room = 4m = 400cm

Width (breadth) of room = 3m = 300cm

Area of the room =length * width

= 400*300

=120000$cm^{2}$

Length of carpet =80 cm

The breadth of carpet = 60cm

Area of carpet = 80*60 = 4800$cm^{2}$

Area of floor not carpeted = area of the room - area of the carpet

= 120000-4800

= 115200$cm^{2}$

1$m^{2}$ = 10000 $cm^{2}$

So 115200$cm^{2}$ = $\frac{115200}{10000}m^{2}$

= 11.5$m^{2}$

Therefore the area of the floor not carpeted is 11.5$m^{2}$