Question

A rectangular park is $55m$ and $89m$ long. Find the cost of fencing it at the rate $Rs.115$ per $100m.$

Answer 1

STEP 1: Find the perimeter

$\Rightarrow$Perimeter of rectangular park $=2(length+breadth)$

$=2(55+89)$

$=288m$

Step 2: Find the cost of fencing

Given that, cost of fencing at the rate $Rs.115$ per $100m.$

$\Rightarrow$Cost of fencing per $1m$ $=\frac{115}{100}$

$=Rs1.15$

$\Rightarrow$Cost of fencing for $288m$ $=1.15\times 288$

$=Rs331.2$

Therefore, the cost of fencing of rectangular park is $Rs331.2$