Question

Please solve this question with proper steps ..
1) A square room contains 256 metre cube of air. The cost of carpeting the room at Rs 55 per square metre is Rs 3520. Find the cost of painting its walls at Rs 12.50 per sq. metre.​​

Answer 1

Answer:

₹800

Step-by-step explanation:

Since, Cost of carpeting per m²:- ₹55

Since Total Cost for Carpeting:- ₹3520

Therefore Total Are of area:-

3250/55

= 64 m²

Therefore in a square room every side and a particular face area is the same so the wall's area will also be 64 m².

Since, cost of painting its walls per m²:- ₹12.50

Therefore, cost for painting the wall:- ₹12.50 × 64

₹800

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Answer 2

Answer:

i think its answer is Rs1600 but hiw?