Question

The breadth of a rectangular field is 20 m less than its length. If it's length is 80 m, find the cost of fencing the field at the rate of 3.50 per meter

Answer 1

Length = 80m
Breadth = 80-20 = 60m
Perimeter = 2(l+b)
= 2(80+60)
= 2*140
= 280m
Cost of fencing = 280*3.50
= Rs 980