Question

a room is 13m long and 9M broad find the cost of carpeting the room with a carpet 75cm broad @ rupees 65 per metre​

Answer 1

Answer:

Length of room (l) = 13 m

Breadth of room (b)= 9 m

Breadth of carpet= 75 cm = 75/100= .75 m

[ 1 cm = 1/100]

Area of room = length × breadth

Area of room = 13×9 = 117 m²

Let Length of required carpet be x m

Area of carpet = x × .75= .75x m²

Area of carpet = area of room

.75x = 117

x = 117 /.75 = 11700/75= 156

Length of carpet = 156 m

Cost of carpeting 1 m = ₹ 65

Cost of carpeting 156 m = 156 × 65 = ₹ 10140

Hence, the cost of carpeting = ₹10140

Hope this will help you.....

Answer 2

Answer:

Given

Length of the room =13 m

Breadth of the room =9 m

Area of the room = (length \times breadth)

=(13×9) m

2

=117 m

2

Let the length required of the carpet be x m

Breadth of the carpet =75 cm=0.75 m

Area of the carpet =(0.75×x) m

2

=0.75x m

2

For carpeting the room

Area converted by the carpet = Area of the room

0.75x=117

x=117/0.75

x=156 m

Hence, length of the carpet =15 m

1 m carpet cost = rupees 65

156 m carpet cost will be =(156×65)

= Rupees 10140