Question

a rectangular park is 120 metre long and 60 metre wide . A3 m white path is constructed around the park outside it. find the cost of constructing it at the rate rupees 12.50 per m​

Answer 1

Step-by-step explanation:

perimeter of rectangular park=1/2(120+60)

=1/2×180=90

now the length of the path is 90 and the breadth is 3m

area=L×B

90×3

=270

now the total cost to make path is

270m ×12.50

=3375Rs

Answer 2

Step-by-step explanation:

area of reactangle=l*b= 120 *60 = 7200

now

l= 123+2(3) =123+6=128

b=60+2(3)=60+6=66

area of rectangle = 128*66 = 8448

area = 8448- 7200 =1248

cost = rate * area = 12.50*1248= 15,600