Question

The length and breath of a rectangular peace of land are in ratio 4 and 3 if the total cost of fencing it at 10 rupees per meter is 4200 find the length and breath

Answer 1

Answer:

l

Step-by-step explanation:

explation is in picture

Answer 2

Answer:

Length = 120m

Breadth = 90m

Step-by-step explanation:

Let the length be 4x and breadth be 3x

We usually fence around a border right

so that means it is the perimeter they are talking about

Perimeter of rectangle = 2(l + b)

perimeter = 2(4x + 3x) = 2(7x) = 14x

Now,

Cost of fencing = Perimeter × Rate

4200 = 14x × 10

14x = 4200/10

14x = 420

x = 420/14 = 30

Therefore, Length = 4 × 30 = 120m

Breadth = 3 × 30 = 90m

Hope you understood it........All the best