Question

Find the cost of carpeting a room 13 m long and 9 m broad with a carpet 75 cm wide at the rate of Rs. 12.40 per square metre.

Answer 1

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Answer 2

Answer:

Total cost of the carpet is  Rs 1450.8

Step-by-step explanation:

Explanation:

Given , a room whose length = 13m and breadth = 9m

And width of the carpet = 75cm = 0.75m

Let length of the carpet be x metre .

Step 1:

Area of the room = l × b

⇒A = 13 × 9 = 117$m^{2}$

Now area of carpet = x× 0.75 $m^{2}$.

[Where x be the length and 0.75 is the width of the carpet ]

But according to the question ,

Area of room = Area of carpet

⇒ 117 = x × 0.75

⇒ x = $\frac{117}{0.75}$ = 156 m .

Length of carpet is 156m

Area of carpet = 156 × 0.75  = 117$m^{2}$

Step 2:

And given that , Cost of the carpet per square  metre  =Rs 12.40

Therefore , cost of the carpet  = 117  × 12.40

                                                  = Rs 1450.8

Final answer:

Hence , Total cost of  the carpet  is Rs 1450.8.

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