What is the least number of squares tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad?

The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle?

The difference between the length and breadth of a rectangle is 23 m. If its perimeter is 206 m, then its area is:

A tank is 25 m long, 12 m wide and 6 m deep. The cost of plastering its walls and bottom at 75 paise per sq. m, is:

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

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