Question

part 1 metre wide is built along the border inside a square Park of side 30 metre find the cost of covering the remaining portion of the park by grass @ 60 paise per square metre​

Answer 1

THE ANSWER IS GIVEN IN THE ABOVE ATTACHMENT

Answer 2

Answer:

Area of square =(side) ²

=(30x30)m²

=900m²

Side of the part 1 =30-(1+1)m

=(30-2)m

=28m

Area of the part =(side) ²

=(28x28)m²

=784m²

60 paise =0.60 rupees

cost of leveling by grass =784 x 0.60

=470.4

now I got it correct :-)

pls mark me brainliest if you can and thanks for this question it really helped me a lot