Question

Perimeter of a square plot with side 5x is 100 units. Find the length of it's side.

• A. 5 units
• B. 15 units
• C. 20 units
• D. 25 units

Answer 1

The correct option is D 25 units

The perimeter of a square of side $a$ units is $4a$ units.
Given, perimeter of the square is 100 units.
$⟹4\times 5x=100$
$⟹5x=25$
$⟹x=5$
Given that the length of the side is 5x units ,
So, the length of each side is 5 $\times$ 5 = 25 units.