Question

The ratio of length and breadth of a rectangular plot is 7 : 6. If its breadth is 42

m. Find its length.​

Answer 1

Answer:

Consider 7x as the length and 4x as the breadth of the rectangular field.

So we get,

Perimeter=2(l+b)

2(7x+4x)=440

2(11x)=440

22x=440

x=11 m

Here,

Length =7x

=77 m

Breadth =4x

=44 m

Cost of fencing =150 Rs./m

So the cost of fencing will be,

⇒150×440

⇒Rs. 66,000