Question

If the cost of fencing park with length 20m is rs 1600 at the rate of rs 25 per metre, find the breadth of the park

Answer 1

Answer:

240

Step-by-step explanation:

Perimeter=2×(l+b)

=1600/25=64

2×(20+b)=64

b=12

area=20×12=240

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Answer 2

Answer:

3.2 m

Step-by-step explanation:

given,

l=20m

total cost of fencing=1600

cost per meter=25

1600/25 =64 ,there are 64 m i. e, area

area of rectangle= l*b

64/20=3.2m

CHECK:

64/3.2 =20m=length