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Q.

The perimeter of a rectangular garden is 30 feet. If its length is 6 feet, what is its width?


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a

9 feet

b

10 feet

c

11 feet

d

8 feet 

answer is A.

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Detailed Solution

It is given that the perimeter of a rectangular garden is 30 feet and its length is 6 feet.
We know that the perimeter of a shape is the distance around it.
In particular, the perimeter of a rectangle is given by the formula P=2W+2L.
Here, W stands for width and L stands for length.
Substituting the given values in the formula for perimeter,
30=2W+2(6)
30=2W+12
18=2W
W=9 feet
Therefore, the width of the garden is 9 feet.
Hence, the correct option is 1.
 
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