Question

The cost of fencing a square field at Rs 14 per metre is Rs 28000. Find the area of the field.

Answer 1

Perimeter $=\frac{Cost}{Rate}$

$=\frac{28000}{14}=2000$m

Perimeter of square $=2000=4a$

$4a=2000$

$a=500m$

Area $=a^2=(500{)}^2$

$=250000m^2$.