Question

find the cost of fencing a rectangular field 40m long and 22m wide at Rs. 10 per metre ​

Answer 1

Answer:

Let the length of the field be l

Given width of the field is 16 m

Given Cost of fencing per metre is 20

Total cost of fencing is 2000

⟹ Perimeter of rectangular field is

20

2000

=100 m

⟹2(l+16)=100

⟹l=50−16=34 m