The length of a rectangle is increased by $25\%$, but the width of the rectangle is decreased to keep the area of the rectangle  unchanged.  By what percent was the rectangle's width  decreased?
Question:
The length of a rectangle is increased by $25\%$, but the width of the rectangle is decreased to keep the area of the rectangle  unchanged.  By what percent was the rectangle's width  decreased?
Answer:
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The length of a rectangle is increased by $25\%$, but the width of the rectangle is decreased to keep the area of the rectangle  unchanged.  By what percent was the rectangle's width  decreased?
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