Question

21. A room is 11 m long and 9 m wide. What is
the cost of carpeting the floor at the rate of
Rs. 110 per square meter? (2 Marks)​

Answer 1

Answer:

R.s -- 16380

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

Step-by-step explanation:

area=l×b

area=11×9

area=99meter square

Cost=110×99=10890rupees

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