Question

A field is in the shape of a parallelogram whose adjacent sides that one is double of the other. if the cost of fencing the field is 4350rs at the rate of 5rs per m, find the lengths of the two adjacent sides of the field.
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Answer 1

Answer:

Explanation:

Let breadth = x m

Then, length = (x+5)m

Area of a rectangle = Length x Breadth

x(x+5) = 750

x² + 5x - 750= 0

(x+30)(x-25)= 0

x = 25 or x = -30

Hence, breadth x = 25m

=> Length = x + 5 = 25 + 5 = 30m.