Question

find the total cost of levelling the shaded path of uniform width 2 m,laid in the rectangular filed shown below .if the rate per meter square is RS 100 , rectangular breadth is 40 and length is 50.
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Answer 1

Length-50 m

breadth-40 m

total area of the field including the external path =50+2 m and 40+2m

52×42=2184

the area excluding the external path =40×50=2000 m

the area of the path = 2184-2000=184 m

the cost of leveling =100×184 =18400 rs

Answer 2

Answer:

Rs.17600 or Rs.18400 (with conditions laired down accordingly)

Step-by-step explanation:

if the outer width and length are 50 and 40

then

outer rectangle= 50*40

=2000m^2

inner rectangle=(50-2)*(40-2)

=1824m^2

the path=outer-inner

=2000-1824

=176m^2

total cost= 176*100

=Rs.17600

else

inner width and length = 50 and 40

then

outer area=52*42

=2184m^2

inner area= 50*40

=2000m^2

path=inner-outer

=184

cost=184*100

=Rs.18400