Question

12. The perimeter of a rectanglular field is 500 m and its breadth is 220 m. Find the length and cost of
fencing the field at the rate of 20 per m.
10 m​

Answer 1

Answer:

•Given:-

Length of the rectangular field=110 m

Breadth of the rectangular field=85 m

→Perimeter of the rectangular field =2 (l+b)

=2(110+85)

= 2×195

= 390 m²

→Cost to fence the field per metre=Rs.25

→Cost to fence the field 390 metre=Rs.25×390

= Rs.9,750

→Cost of fencing the field =Rs.9750

$\huge \green{ \boxed{ Rs 9750.}}$

Answer 2

Answer:

Let length be the x

Perimeter =500

B=220m

L=x

By questions we have,

Perimeter=2(l+b)=500

=> 2(x+220)=500

=>2x +440=500

=>2x=500-440

=>2x=60

=>x=60/2=30

therefore=Cost of the fencing field =30× 20=Rs 600