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Question

The length of a rectangular playground is 40 m and breadth is 15 m. Find the cost of fencing it at the rate of ₹ 5 per metre..

A
550
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B
650
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C
1050
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D
750
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Solution

The correct option is A 550
Given:
The playground is rectangular in shape with length = 40m and breadth = 15m.
Perimeter of a rectangle = 2× (length + breadth )
P=2×(40 m+15 m)=110 m
Cost of fencing 1 metre of the playground = 5
Cost of fencing the playground = (Cost of fencing 1 m of the playground) × (Perimeter of the rectangle)
Cost of fencing =5×110 m=550
Therefore, cost of fencing the playground will be 550.

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