Question

The cost of levelling a square lawn at rps 15 per square meter is 20535. Find the cost of fencing the lawn at rps 22 per meter.​

Answer 1

$\sf\huge\bold{Answer:}$

Given :

• Cost of leveling square lawn = Rs.20535
• Cost of leveling per m² = Rs. 15
• Cost of fencing per m = Rs. 22

To find :

Cost of fencing lawn

Solution :

• Cost of square lawn = Cost per m²× Area of lawn

20535 = 15 × Area

Area = 20535/15

Area = 1369 m²

• Area of square lawn = side²

1369m²=side²

side=√1369m²

side= 37m

Side of square lawn = 37m

• Perimeter of square = 4×side

Perimeter = 4×37m

Perimeter = 148m

• Cost of fencing square lawn = Cost of fencing per m × perimeter of lawn

Cost = Rs.22 × 148

Cost = Rs.3256

Cost of fencing square lawn is Rs.3256