Question

The length of a rectangular field is 6m less than thrice its breadth and the area of the field is 360m. what is the breadth of the field

Answer 1

Answer:

b=12

Step-by-step explanation:3b-6=a,ab=360,b=?

(3b-6)b=360

3b^2-6b=360

b^2-2b=120

(b-1)^2=121

b-1=11

b=11+1=12

Answer 2

Let the breadth of the rectangular field is x m.

According to the given condition,

the length is [ 3x-6] m.

area of the rectangular field =360m sq

 = length × breadth

  =[3x-6]× x

 =3x²-6x =360

=3x²-6x-360=0

=x²-2x-60 =0

And rest of this I think you can solve by yourself.

Solve this equation and get the answer by your own.