Question

find the cost of fencing a rectangular field whose sides are 20 m an35 m at the rate of Rs 5 per meter ​

Answer 1

Answer:

Fencing is done at the perimeter so, perimeter of rectangular park=2(l+b)=2(350+250)

⇒2×600=1200m

Rate of fencing per meter=Rs. 18.50

∴ Rate of fencing 1200 m =Rs.8.50×1200

Answer 2

Answer:

Rs. 550

Step-by-step explanation:

let l be 20m nd b be 35m

fencing will be done on boundary i.e.perimeter

p(rectangular field) =2(l+b)

2(20+35)

2(55)

110 m

cost of fencing 1m= Rs. 5

cost of fencing 5m= 110 X 5

= Rs. 550

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