Question

A room is 13m long and 9m broad. The cost of carpeting the room with a carpet of width 65 cm at the rate of Rs.65 per meter is​

Answer 1

Step-by-step explanation:

Length of the room = 13 m

Breadth of the room = 9 m

Area of the room = l × b = 13 × 9 = 117 sq m

Let the length of the carpet required = 'l' m

Width of the carpet = 75 cm = 0.75 m

Area of the carpet = Area of the room

⇒ l × 0.75 = 117

⇒ l = 117 / 0.75

⇒ l = 156 m

Length of the carpet required = 156 m

Cost of the carpet per metre = Rs 105

Total cost of the carpet = 156 × 105 = Rs 16380.

Answer 2

area of room floor = 13 * 9

= 117 sq. m

let the length of required carpet be x meters

Area of carpet = x × 0.65= 0.65x m²

0.65x = 117

x = 180 m

cost = 180 * ₹65 = ₹ 11700

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