Question

the total cost of fencing a rectangular field is ₹800 at the rate of ₹4 per meter . if the length of the field is 64m , what will be the breadth of rectangular field

Answer 1

Answer:

the breadth is 36

Step-by-step explanation:

the perimeter of rectangle is 2( a+ b)

the total area is 800/4=200

200= 2(64+b)

b= 36

Answer 2

Answer:

Step-by-step explanation:

The total cost is ₹800, and the cost per metre is ₹4, hence the perimeter is

$\frac{800}{4}$ = 200m

The formula for the perimeter of a rectangle is 2 x (length + breadth)

Let's consider the breadth to be x.

So, 2 x (64 + x) = 200

=> 128 + 2x = 200

=> 2x = 200 - 128

=> 2x = 72

=> x = $\frac{72}{2}$

=> x = 36

Hence, the breadth is 36m