Question

the length of a rectangle is increased by 10% whereas its breath is decreased by 10%
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Answer 1

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Correct Question:-

The length of a rectangle is increased by 10% while its breadth is decreased by 10%. What is the consequent percentage change in the area of the rectangle?

Given:-

The length of a rectangle is increased by 10% while its breadth is decreased by 10%.

To Find:-

The area will change by what percentage.

Solution:-

Percentage change in area would be,

$\red{\implies\:\:}$ $\sf{x-y-\dfrac{x \times y}{100} }$

$\red{\implies\:\:}$ $\sf{10-10-\dfrac{10 \times 10}{100} }$

$\red{\implies\:\:}$ $\sf{1 \%}$

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