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    Question

    If the length of a rectangle is increased by

    10% and the area is unchanged , then its corresponding breadth must be decreased by?
    A 100 % Correct Answer Incorrect Answer
    B 110 % Correct Answer Incorrect Answer
    C 190/11 % Correct Answer Incorrect Answer
    D 100/11 % Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Length is increased by 10% = 1/10 So breadt will be decreases by = 1/(10 + 1) x 100 = 100/11 % Alternate Method; If Length increases by 10% . lets syaing increasing from 100 to 110 So breadth will decrease incersalt from 110 to 100 So % decrease in breadth = (110 - 100)/110 `xx` 100 = 10/110`xx` 100 = 100/11 % ` `

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