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Let the length be x:

17x = 391

x = 23

So length = 23 meters and width = 17 meters

Perimeter = 23+23+17+17 = 80 meters

Cost = 80*7.50 = rs 600

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Q: The area of the rectangular plot is 391 meter square and its width 17 meter find the l of the plot and the cost of fencing at the rate of rs 7.50 per meter?
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