If the length of a rectangular field is increased by 20% and the bread

1.	If the length of a rectangular field is increased by 20% and the breadth is reduced by 20% the area of the rectangle will be $$192m^{2}$$. What is the area of the original rectangle ?1). $$184m^{2}$$2). $$196m^{2}$$3). $$204m^{2}$$4). $$225m^{2}$$
Answer» Solution Let the length be L and breadth be B. The new length and breadth is 1.2L and 0.8B. Hence, AREA = 1.2L.8B=192 Now LB=200, but ORIGINAL area = L*B= 200

If the length of a rectangular field is increased by 20% and the breadth is reduced by 20% the area of the rectangle will be $$192m^{2}$$. What is the area of the original rectangle ?1). $$184m^{2}$$2). $$196m^{2}$$3). $$204m^{2}$$4). $$225m^{2}$$

Answer»

Solution

Let the length be L and breadth be B. The new length and breadth is 1.2L and 0.8B.

Hence, AREA = 1.2L*.8B=192

Now L*B=200, but ORIGINAL area = L*B= 200