Square metre

There is a square field of area 'N' square metres. A cylindrical ditch of radius 7 metres and depth 4 metres is dug, and the earth is taken out and spread over the remaining part of the square field, the height of square field. goes up by I .54 metres. What is the value of 'N'?

Priya used four similar rectangular carpets and a square carpet for the flooring in her study room as shown below. If it cost her Rs. 6 per square metre for the rectangular carpets and Rs. 8 per square metre for the square carpet, how much did she pay in all ?

The volume of a closed square based rectangular box is 1000 cubic metre. The cost of constructing the base is 15 paise per square metre and the cost of constructing the top is 25 paise per square metre. The cost of constructing its sides is 20 paise per square metre and the cost of constructing the box is Rs. 3.Find the dimensions of box for minimum cost of construction.

The volume of a closed square based rectangular box is 1000 cubic metre. The cost of constructing the base is 15 paise per square metre and the cost of constructing the top is 25 paise per square metre. The cost of constructing its sides is 20 paise per square metre and the cost of constructing the box is Rs. 3.Find the dimensions of box for minimum cost of construction.

The side of a square is x metres, and the perimeter is 28 metres. Then find x.

A city building code requires that the area of the windows must be at least (1)/(8) of the area of the walls and roots of all new building. The daily heating cost of a new building is ₹ 3 per square meter of window area and ₹ 1 per square metre of wall and roof area. To the nearest square metre of wall and roof area. To the nearest square metre, what is the largest surface area a new building can have if its daily heating cost cannot exceed ₹ 1,000 ?

The perimeter of a square is 14 metres. What is its area?

A square of 100 metre perimeter has it's area -