Question

the cost of levelling a square lawn at rupees 15 per square metre is rupees 19935 find the cost of fencing the lawn at rupees 22 per metre

Answer 1

Answer: Total cost of fencing the lawn is Rs. 3208.07.

Step-by-step explanation:

Since we have given that

Cost of levelling a square lawn at Rs. 15 per square = Rs. 19935

Cost of levelling a square lawn at Rs. 22 per square be 'x'.

So, Area will become

$Area=\frac{Total\ cost}{Cost\ per\ m^2}\\\\Area=\frac{19935}{15}\\\\Area=1329\\\\Side\times Side=1329\\\\Side=\sqrt{1329}\\\\Side=36.45\ m$

So, perimeter of square becomes 4×side

So, it becomes =  4 × 36.45 = 145.82 m

Since Cost of per m = Rs. 22

So, Cost of fencing becomes

$22\times 145.82\\\\=Rs.3208.07$

Hence, Total cost of fencing the lawn is Rs. 3208.07.