Question

The cost of harvesting a square field at rate of rs 180 per hectare is rs 1620. Find the cost of putting a fence around it at the rate of rs 6.75 per meter.

Answer 1

cost of harvesting a square field=rs1620
cost ..........................1hectare..........=rs 180
area of field=1620/180= 9hectare
1 hectare=10000m^2
so, area=90000m2
a*a=90000
a^2=90000
a =√90000
a =300m
perimeter=4*a
=4*300
=1200m
cost of fencing 1m=rs6.75
cost of fencing 1200m=rs.1200*6.75
=rs.7100

Answer 2

hope it will be helpful to you