In the figure drawn below, its dimensions are given in metres.
If $C = 3$ , find the total cost to fence the garden, if the cost of fencing is $R s .7$ per metre.

R s .356

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R s 360

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R s 322

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R s 375

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Solution

The correct option is B $R s 322$
In the given

The complete perimeter $= 6 + c + c + 9 + 12 + 5 + c + 5$
$= 37 + 3 c$

At $c = 3$
Perimeter $= 37 + 3 \times 3 = 46 m$

Cost of fencing= Perimeter $\times$ Cost of fencing
$= 46 \times 7 = R s 322$

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Question 40

Total cost of fencing the park shown in the given figure is ₹55000. Find the cost of fencing per metre.

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