Question

The cost of levelling a square ground at the rate of Rs.0.8 per 100m2 is Rs.28.80. Find the cost of fencing the same square ground at Rs.0.60 per metre.

Answer 1

Answer:

144 rupees

Step-by-step explanation:

let the area be x

(cost of levelling per 100 sq. metre * area / 100)= total cost

0.8 * x / 100 = 28.8

x = 3600

side = 60

cost of fencing = perimeter * cost per metre

                         = 4 * 60 *0.6 = 144 rs.

Answer 2

Given - The cost of levelling a square ground at the rate of Rs.0.8 per 100m2 is Rs.28.80

Find - Cost The cost of levelling a square ground at the rate of Rs.0.8 per 100m2 is Rs.28.80

Solution - At rupees 0.8 the area covered is 100 metre²

At rupees 28.80, the area covered will be = 3600 metre²

Thus the area of square ground is 3600 metre².

Now calculating side of square ground.

Area = side²

Side = ✓Area

Side = ✓3600

Side = 60 metre

Perimeter = 4*side.

Perimeter = 4*60

Perimeter = 240 metre

Now, fencing costs Rupees 0.60 for 1 metre.

Fencing cost for 240 metre will be = 240*0.60

Fencing cost for 240 metre = 144

Hence, cost of fencing given square ground is Rupees 144.