Question

Find the cost of erecting a fence around a squar field, whose area is 729 hectares at the rate of Rs.1.50 per metre. (1 hectare=10000m2)

Answer 1

since the area = 729 hectares = 7290000 m^2
the length of the square = 2700 m

so the perimeter is 4 times that, then multiply by 1.5 to get Rs

Answer 2

good

Answer 3

Bad