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 ?
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
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