Question

The perimeter of a square field is 20 cm more than the perimeter of a rectangle. The length of the rectangle is 56 cm which is 400% of its width. If a street of width 10 cm surrounds from outside the square, then find the total cost of constructing the street at the rate of Rs. 30 per sq. cm?

Q: Answer-&lt;p&gt;The perimeter of a square field is 20 cm more than the perimeter of a rectangle. The length...

Let the width of the rectangle x cm Then, 400 of x 56 x 56 times 100400 14 cm Perimeter of the rectangle 2length width 2 times 56 14 140 cm Perimeter40 of the square 140 20 160 cm The sides of the square 1604 40 cm The area of the square field without street 402 sq. cm 1600 sq. cm The area of the square field with street 40 202 sq. cm 3600 sq. cm The area of the street 3600 ndash 1600 2000 sq. cm The total cost of constructing the street 2000 times 30 Rs. 60,000