Answer:

Let length of rectangle be x m

Raito of length and Breadth=7:4

[tex]\blue{\frac{x}{Breadth}=\frac{7}{4}}[/tex]

⇒ Breadth=[tex]\blue{\frac{4x}{7}}[/tex]

Cost of fencing 1m=Rs. 25

Cost of fencing the fluid =Rs. 3300

Perimeter of rectangle × cost of fencing 1cm = cost of fencing the field.

[tex]\blue{2(l+b)*25=3300}[/tex]

[tex]\blue{50(l+b)=3300}[/tex]

[tex]\blue{l+b=66}[/tex]

[tex]\blue{x+\frac{4x}{7}=66}[/tex]

[tex]\blue{11x=66*7}[/tex]

[tex]\blue{x=42}[/tex] Answer

Step-by-step explanation: