Question

the length and breadth rectangular field are ratio 5:3 . the area of field is216 sq.m if fence is to be madeat the rate of rupees 350 per m how much will it cost

Answer 1

hope this will help u..

Answer 2

Answer:

The cost of fencing is Rs.21224.  

Step-by-step explanation:

Given : The length and breadth rectangular field are ratio 5:3 . the area of field is 216 sq.m if fence is to be made at the rate of rupees 350 per m.

To find : How much will it cost?

Solution :

Let the ratio between length and breadth be x.

So, Length = 5x and Breadth = 3x

The area of the rectangular field is 216 sq.m

The formula to find area is

$A=l\times b$

$216=5x\times 3x$

$216=15x^2$

$x^2=14.4$

$x=3.79$

Length = 5x

Length = 5(3.79)

Length = 18.95 m

Breadth = 3x

Breadth = 3(3.79)

Breadth = 11.37 m

Perimeter of the field is

$P=2(l+b)$

$P=2(18.95+11.37)$

$P=2(30.32)$

$P=60.64$

The fencing is the perimeter of the rectangular field.

The rate is Rs.350 per meter.

The cost of the fencing is

$C=60.64\times 350\\C=21224$

Therefore, The cost of fencing is Rs.21224.