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'?

Twenty-nine times the area of a square is one square metre less than six times the area of the second square and nine times its side exceeds the perimeter of other square by 1 metre. The difference in the sides of these squares is (a) 5m (b) (54)/(11)m (c) 6m (d) 11m

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.

A park square in shape has a 3 metre wide road inside it running along its sides.The area occupied by the road is 1764 square metres. What is the perimeter along the outer edge of the road? (a) 576 metres (b) 600 metres 640 metres (d) Data inadequate (e) None of these

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