Question

what is the cost of fencing a rectangular field 500 metre long and 200 metre wide @ rupees 7.5 per 100 square metres ​

Answer 1

Answer:

area of rectangle = 500 x 200

= 100000

rs. 7.5 = 100 sq.m

rs. 0.075 = 1 sq.m

cost of facing = 100000 x 0.075

= 7500 Rupees

Answer 2

Answer:

clearly

perimeter of rectangular field = 2(l+b)

= 2(500+200)

= 2× 700 m

= 1400m

cost of fencing 1m = Rs.7.5

cost of fencing 1400 m is 1400×7.5

=Rs 10500