Question

The length of a rectangular plot of land is 50 m and it's width is 30 m. A triple fence has to be put along its edges. If the wire costs 60 rupees per meter, what will be the total cost of the wire nedded for the fence?

Answer 1

Length of plot (L) = 50m
Width of plot (B) = 30m
Perimeter of plot 2(L+B) = 2*(50+30) = 2*80 = 160 m

Wire used for single fencing = Perimeter = 160 m
Wire used for triple fencing = 3*160 = 480 m
Cost of wire = Rs 60/m

Total cost = 480*60 = Rs 28800

Answer 2

Hi Friend !!

Here's ur ans :-

Length of rectangular plot ( l ) = 50 m
Width of rectangular plot is ( b ) = 30 m



One fence = Perimeter of the rectangle


Triple fence = 3 ( Perimeter of rectangle )

Triple fence = 3 ( 2 ( l + b ) )

Triple fence = 6 ( 50 + 30 )

Triple fence = 6 × 80

Triple fence = 480 m


Cost per metre = ₹ 60

Cost for 480 m = ₹ 60 × 480

= ₹ 28800