The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:

Find the area of a rectangle having 15m length and 8m breadth.

The diagonals of a squares is 4?2 cm. The diagonal of another square whose area is double that of the first square is

A cost of cultivating a square field at a rate of ? 135 per hectare is ? 1215. The cost of putting a fence around it at the rate of 75 paise per meter wouldbe

The dimensions of a room are 10m x 7m x 5m. There are 2 doors and 3 windows in the room. The dimensions of the doors are 1m x 3m. One window is of size 2m x 1.5m and the other 2 windows are of size 1m x 1.5m. The cost of painting the walls at Rs. 3 per sq m is

How many circular plates of diameter d be taken out of a square plate of side 2d with minimum loss of material?

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