Question

the length and breath of a rectangular piece of land are in the ratio of 5 is to 3. if the total cost of fencing it at ₹24 per meter iS ₹9600 find length and breath

Answer 1

Answer: let the length be 5x and breadth be 3x

ACCORDING TO QUESTION

The formula of perimeter is 2(l+b)

So the queatition made is

(2(l+b)×24) =9600

First we solve the LHS

(2(5x+3x)×24)

((16x)×24)

384x

Then

384x =9600

x =9600/384

x=25

So length is 5×25 =125 &breadth is 25×3 =75