Question

the area of rectangular plot is 340 m square and its breadth 17meter.find the cost of surrounding the plot with fencing rupees 50. 70 per metre.

Answer 1

area of plot =340
breadth =17
so let length=x
then area=l*b
=x*17=17x
but given area=340
so 340=17x
=x=340/17=20
so length=20
perimeter =2[l+b]
=2[20+17]
=2*37
=54
cost of fencing =50.70
so 54*50.70=2737.8

Answer 2

Answer:

Rs.3751.8

Step-by-step explanation:

The area of rectangular plot is 340 m square

Its breadth 17 meter

Area of rectangle = Length * Breadth

340 = Length * 17

20 = Length

Perimeter of rectangle = $2(Length +Breadth)$

                                     =$2(20+17)$

                                     =$74 m$

Now cost of fencing 1 m = Rs. 50.7

So, cost of fencing 74 m = 50.7*74

                                        =Rs.3751.8

Hence the cost of surrounding the plot with fencing rupees 50. 70 per meter is Rs.3751.8