the length of a rectangular field is increased by 50% and breadth is decreased by 50% to form a new rectangular field find the percentage change in the area of field
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let length be X metering and breadth be y meter then area of field is = xy meter
if length is increased by 50 % then length is 3x/2
and breadth is 3y/2 meter
then area will be = 9xy /4
% area increased = new area - old area / old area × 100
125 % increase arae
if length is increased by 50 % then length is 3x/2
and breadth is 3y/2 meter
then area will be = 9xy /4
% area increased = new area - old area / old area × 100
125 % increase arae
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