The length of a rectangle is reduced by 10%. By what % would the width have to be increased to maintain the original area?  Choose the correct choice from the following answers.
A) 10%	B) 11.1%	C) 25%	D) 30%	E) 35%
Sol. Required change = (10*100)/(100-10)=11.1%   11.1%
<result>B</result>
The length of a rectangle is reduced by 10%. By what % would the width have to be increased to maintain the original area?