Class V

A rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 680 sq. feet, how many feet of fencing will be required ?
  1. 24
  2. 66
  3. 88
  4. 44
The difference between the length and breadth of a rectangle is 23 m. If its perimeter is 206 m, then its area is :
  1. 1520 m2
  2. 2420 m2
  3. 2480 m2
  4. 2520 m2
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?
  1. 16 cm
  2. 24 cm
  3. Data inadequate
  4. 18
The diagonal of a rectangle is 41 cm and its area is 20 sq. cm. The perimeter of the rectangle must be :
  1. 9 cm
  2. 18 cm
  3. 20 cm
  4. 41 cm
The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:
  1. 40%
  2. 42%
  3. 44%
  4. 46%
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