Question

If the length of a rectangle is increased by 10% and its breadth is decreased by 10%, then its area will change by how much percentage of the original area?

Answer 1

Here is your answer.think it practically

Answer 2

Answer: The area will decrease by 1% of the original area.

Step-by-step explanation:

Since we have given that

Length of rectangle is increased by 10%

Width of rectangle is decreased by 10%

we need to find the area will change by what percentage.

So, percentage change in area would be

$x-y-\dfrac{xy}{100}\\\\=10-10-\dfrac{10\times 10}{100}\\\\=-1\%$

Hence, the area will decrease by 1% of the original area.