Question

17 . Find the cost of fencinga
rectangle garden at the rate of
RS, 750 per m if its length and
breadth are 40 and 30 m
O Rs 1000
O Rs 1050
O Rs 1100
O Rs 1150​

Answer 1

Correct Question :

Find the cost of fencing a rectangular garden at the rate of Rs. 7.50 per m if its length and breadth are 40 m and 30 m .

O Rs 1000

O Rs 1050

O Rs 1100

O Rs 1150

Given :

• Length and Breadth of the garden is 40 m and 30 m respectively .

To Find :

• Cost of Fencing the garden at the rate of Rs. 7.50 per m .

Solution :

$\longmapsto\tt{Length=40\:m}$

$\longmapsto\tt{Breadth=30\:m}$

Using Formula :

$\longmapsto\tt\boxed{Perimeter\:of\:Rectangle=2(l+b)}$

Putting Values :

$\longmapsto\tt{2(40+30)}$

$\longmapsto\tt{2(70)}$

$\longmapsto\tt\bf{140\:m}$

Perimeter of Garden is 140 m ..

Now ,

$\longmapsto\tt{Cost\:of\:1\:m=Rs.7.50}$

$\longmapsto\tt{Cost\:of\:140\:m=140\times{7.50}}$

$\longmapsto\tt\bf{Rs.1050}$

So , The Cost of Fencing the garden is Rs. 1050 ..

Answer 2

Step-by-step explanation:

Corrected Question :

Find the cost of fencing a rectangular garden at the rate of Rs. 7.50 per metre if its length and breadth are 40 m and 30 m.

$\purple {\bigstar \underline{ \boxed{ \sf{ \red{Given \colon}}}}} \\ \sf{ \red{Length \: of \: rectangular \: garden = 40 \: m}} \\ \sf{ \red{ Breadth\: of \: rectangular \: garden = 30 \: m}} \\ \sf{ \red{Cost \: of \: fencing \: 1 \: m \: of \: rectangular \: garden=Rs. \: 7.50 }} \\ \purple {\bigstar \underline{ \boxed{ \sf{ \red{To \: find \colon}}}}} \\ \sf{ \red{Cost \: of \: fencing \: rectangular \: garden \: at \: the \: rate \: of \: Rs. \: 7.50}} \\ \purple {\bigstar \underline{ \boxed{ \sf{ \red{Formula \: used \colon}}}}} \\ \sf{ \red{Perimeter \: of \: rectangle \: = 2 \: (Length+ Breadth)}} \\ \purple {\bigstar \underline{ \boxed{ \sf{ \red{Solution \colon}}}}} \\ \sf{ \red{Perimeter \: of \: rectangular \: gaden \: = 2 \: (40+ 30)}} \\ \sf{ \red{Perimeter \: of \: rectangular \: gaden \: = 2 \: (70)}} \\ \sf{ \red{Perimeter \: of \: rectangular \: gaden \: =140 \: m}} \\ \sf{ \red{Cost \: of \: fencing \: 1 \: m \: of \: rectangular \: garden=Rs. \: 7.50 }} \\ \sf{ \red{Cost \: of \: fencing \: 140 \: m \: of \: rectangular \: garden=Rs. \: 140 \times 7.50}} \\ \purple{ \bigstar{ \underline{\boxed{\sf{ \red{Cost \: of \: fencing \: 140 \: m \: of \: rectangular \: garden=Rs. \: 1050}}}}}}$