Question

Find the cost of fencing a square park of side $250$ m at the rate of $₹20$ per metre.
[2 marks]

• A. $₹2000$
• B. $₹10000$
• C. $₹5000$
• D. $₹20000$

Answer 1

The correct option is D $₹20000$

The length of each side of a square $=250$ m.

Perimeter of a square
$=4\times$ length of side
$=4\times 250$ m
$=1000$ m
[1 mark]

So, required fencing length is $1000$ m.

Per meter cost of fencing $=₹20$
So, total cost of fencing $=₹20\times 1000=₹20000$
[1 mark]

Therefore, the cost of fencing is $₹20000$.