If each of the dimensions of a rectangle is increased by 200%

Mensuration Percentages

If each of the dimensions of a rectangle is increased by 200%, the area is increased by

  1. 300%
  2. 400%
  3. 600%
  4. 800%

Answer

Area of rectangle = L × B = LB

Increasing 200% means length and breadth of rectangle becomes three times.

New area of rectangle = 3L × 3B = 9 LB

Thus, area is increased by 800%.

The correct option is D.