Question

if the cost of fencing a square field is rs 1280 if the length of side is 40m find the rate of fencing per metre

Answer 1

Answer:

Step-by-step explanation:

perimeter = 160m

Cost = 1280rs

rate = 1280 / 160

       = 80rs

Answer 2

Answer:

l=40

then the perimeter =4l= 4×40=160m2

cost of fencing=perimeter×cost of fencing per 1m2

1280=160× Rs

Rs=8 per m2