1. The sides of a rectangle are in the ratio 4:3 and its area is 972sq.m find the perimeter of rectangle 


2. Find the cost of carpenting a room 13m long and 9m broad with a carpet 75cm broad at the rate of Rs.20 per metre 


3. The length of a rectangle is twice its breadth. If its length is decreased by 5 cm and breadth is increased by 5 cm, the area of the rectangle is increased by 75 sq. cm. Find the length of the rectangle. 


4. If each side of a square is increased by 25%, find the percentage change in its area. 


5. A man walking at the rate of 6km per hour crosses a square field diagonally in 9 seconds the area of the field is 


6. A lawn is in the form of a rectangle having its sides in the ratio 3: 4. The area of the lawn is (1/4) hectares. Find the length and breadth of the lawn. 


7. Find the cost of carpeting a room 13 m long and 9 m broad with a carpet 75 cm wide at the rate of Rs.12 per square metre. 


8. A rectangular grassy plot 100 m. by 70 m has a gravel path 2.5 m wide all round it on the inside. Find the cost of gravelling the path at 90 paise per sq. metre. 


9. The perimeters of two squares are 80 cm and 64 cm. Find the perimeter of a third square whose area is equal to the difference of the areas of the two squares. 


10. A room 11 m 47 cm long and 7m 77 cm broad is to be paved with square tiles. Find the least number of square tiles required to cover the floor. 


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