SOLUTION: If lenght of a rectangle is increased by 30% and the width is decreased by 20% then by what percentage the area of rectangle is increased ?

Question 838225: If lenght of a rectangle is increased by 30% and the width is decreased by 20% then by what percentage the area of rectangle is increased ?
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
= original length of the rectangle
= original width of the rectangle

Then,
= original area of the rectangle
= original length increased by 30%
= original width decreased by 30%
= final area of the modified rectangle
= final area of the modified rectangle
= area increase
= area increase as a fraction or percent of the original area
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