Question

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Answer 1

Let x be the common factor

Ratio = 9:5

So, the length should be 9x m and the breadth should be 5x m

By the problem

9x × 5x = 14580

or, 45x square = 14580

or, x square = 14580/45

or, x square = 324

or, x = √324

or, x = 18

So, 18 is our common factor.

So the length is (9 × 18)m = 162m

Breadth = (5 × 18)m = 90m

As, the problem is concerned with fencing of the rectangular field, all you need to do is worry about the perimeter of the field.

We know that perimeter of a rectangle is 2( l + b)

So, 2(162 + 90)

or, 2 × 252

or, 504m

Cost of fencing 1m is ₹3.25

Cost of fencing 504m is ₹(3.25 × 504)

Which is, ₹1638.

So, total cost is ₹1638.

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Answer 2

Total cost is 1638 rupees.........