Question

if it costs $1600 to fence a rectangular park of length 30m at the rate of $25 per m2.find the breath of the park​

Answer 1

Answer:

breadth=2metre

Step-by-step explanation:

total cost=1600

length of rectangular park=30

cost per metre=25

let breadth be=x

perimeter of rectangular park=2(l+b)

=2(30+x)

Now,

total cost=perimeter*cost per metre

1600=2(30+x)*25

1600/2=(30+x)*25

800/25=30+x

32*-30=x

2m=x

therefore breadth is 2metre