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Question
If the length of a rectangle is increased by 20% and the width is decreased by 20%, then the area is :
decreased by 20%
decreased by 4%
stays the same
increases by 10%
ANSWER : 2
Descrption
<p>We can let L = the original length</p> <p>and W = the original width </p> <p>Thus, the original area of the rectangular is LW and the new area is 1.2L× 0.8W = 0.96LW</p> <p>So, the area is decreased by 4% </p>
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