Question

Question #75eb0

Answer 1

`96%`

Explanation:

Suppose the side of square is `x`
Then its area = `x^2`

When there is 40% increment in the length of the side, the side length would become =`1.4x`

(`40%` = `40/100` = `0.4` and when `0.4x` is added to initial length `x`, the increased or new length becomes `1.4x`)

New Area of square with increased length = `(1.4x)^2` = `1.96x^2`

Now, percentage change in area of resultant square =

`((1.96x^2-x^2)/x^2)*100` = `96%`