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If the length of a rectangle is increased by 12% and the breadth is decreased by 8%, the net effect on the area is:
Answer & Solution
Correct Answer:
Option
A
$$\eqalign{
& 12\% \to \frac{{ + 3}}{{25}} \cr
& 8\% \to \frac{{ - 2}}{{25}} \cr
& {\text{Length}} \to 25:28 \cr
& \underline {{\text{Breadth}} \to 25:23} \cr} $$
$${\text{Increase }}\% = \frac{{19}}{{625}} \times 100 = 3.04\% $$
$${\text{Increase }}\% = \frac{{19}}{{625}} \times 100 = 3.04\% $$
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