Question

the cost of fencing a rectangular field at rs 30 per metre is rs 2400.if the length of the field is 24 m.then its breadth is?​

Answer 1

Breadth= 16m

Step-by-step explanation:

Rate of Fencing = ₹30 per metre

Cost of Fencing = ₹ 2400

If, length = 24 m

Therefore, Perimeter = ( ₹2400/₹30per m)

(2400/30) = 80 m

Breadth = x

Then, Perimeter = [2×(24+x)] m

2(24+x) = 80

(24+x) = 40

x = ( 40- 24)= 16.

Therefore, breadth = 16 m.

Answer 2

Answer:

16 m

Step-by-step explanation:

Given :

the cost of fencing a rectangular field at rupees 30 per metre is rupees 2400

To Find :

if the length of the field is 24 M then its breadth is

Solution:

Cost of fencing 1 m = Rs.30

Length fenced for Rs.2400=\frac{2400}{30}=80

30

2400

=80

So, Perimeter of field is 80 m

Length of field is 24 m

Perimeter of field =2(l+b)=2(24+b)

So,2(24+b)=80

24+b=40

b=40-24

b=16

Hence the breadth is 16 m