The length of a rectangular hallway is 3 times it’s breadth . If the perimeter of the hallway is 48 m , find its length and breadth .
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Let the width be a
Length = 3a
Perimeter = 2 (Length + Width)
=> 2 ( a + 3a) = 48
=> 2 × 4a = 48
=> 8a = 48
=> a = 6
Width = 6 m
Length = 18 m
Length = 3a
Perimeter = 2 (Length + Width)
=> 2 ( a + 3a) = 48
=> 2 × 4a = 48
=> 8a = 48
=> a = 6
Width = 6 m
Length = 18 m
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