Question

The perimeter of a square plot = 320 m. Find : (i) its area (ii) cost of levelling the plot at Rs. 50 per square metre.

Answer 1

Answer:

ans (i)= 8100 m^3

ans (ii)= Rs. 405000

Answer 2

Answer:

(i) 6400 m^2

(ii) Rs. 320000

Step-by-step explanation:

(i) Given,

perimeter = 320 m

Therefore, each side of the plot  = 320/4 m = 80 m

Therefore, area of the plot = (80 m)^2 = 6400 m^2

(ii) Given,

rate of plotting = Rs. 50 /m^2

Therefore, cost of levelling the plot = Rs. (50 * 6400) = Rs. 320000