length of rectangle is 4 m less than 3 times its breadth. if the perimetre of rectangle is 32m then its length breadth are
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Let the breadth be b.
Then length = 3b -4
Perimeter = 2 (l+b)
32 = 2 (3b-4 +b)
16 = 4b-4
20 = 4b
b = 5m
Therefore length = 3b -4
= 3×5 - 4
= 15 -4
= 11m
Then length = 3b -4
Perimeter = 2 (l+b)
32 = 2 (3b-4 +b)
16 = 4b-4
20 = 4b
b = 5m
Therefore length = 3b -4
= 3×5 - 4
= 15 -4
= 11m
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