Question

21. The cost of matting a room 16 metres broad and 12 metres high at Rs. 2.80 per
square metre is Rs. 1019-20. What will be the cost of papering its walls at the same rate,
allowing for 6 doors, each 6 m by 3 m ?
IN. B. Carpeting and matting refers to the floor only and papering refers to the walls only,
excluding the doors and windows if any).
plz do it...I will mark you brainliiest​

Answer 1

Answer:

40rs

Step-by-step explanation:

Area of walls to be papered = Area of 4 walls - Area of 2 windows - Area of door

Dimensions of 2 walls will be 8×3 other two will be 6×3

So Area of walls to be papered

=2(8×3)+2(6×3)−2(

2

3

×1)−(2×

2

1

)

=84−3−1=80m

2

length of paper required

=

100

50

80

=160

Cost =160×

100

25

=40 Rs