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

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

answer:

see explanation

step-by-step explanation:

you also need to know the width and the height.

to calculate the area: length*width

volume: length*width*height

make sure you are consistent with the unit (m)