Question

The sides of the park are in the ratio of 4:3. If its area is 1728m sq. Find the cost of fencing it at the cost of 3 rupees per meter

Answer 1

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Answer 2

Answer:

Step-by-step explanation:

let the sides of the park be 4x and 3x

Area of the park = 1728

length × breadth = 1728

4x × 3x = 1728

12x^2= 1728

x^2 = 1728/12

x = root 144

x = 12

hence,

length = 4×12=48

breadth = 3×12=36

perimeter = 2(48+36)

= 2×84= 168 m

cost of fencing = rs(168×30)

=rs5040