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Question
If the length of a rectangle is increased by 20% and the width is decreased by 20%, the area is :
decreased by 20%
decreased by 4%
Stay the same
increases by 10%
ANSWER : 2
Descrption
<p>Let's assume the length of the rectangle is L and the width is W.</p><p>Then the original area of the rectangle = L x W</p><p>After the increase in length by 20%, the new length = L + 0.2L = 1.2L<br>After the decrease in width by 20%, the new width = W - 0.2W = 0.8W</p><p>So, the new area of the rectangle = (1.2L) x (0.8W) = 0.96LW</p><p>Therefore, the new area of the rectangle is 96% of the original area.</p><p>Answer: 96% of the original area.</p><p>decreased by 4%</p>
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