Perimeter of a rectangle is 2.4m less than 2/5 of the perimeter of a square. If the perimeter of the square is 40 my, find the length and breadth of the rectangle given that breadth is 1/3 of the length.
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Heya !!
Let length of rectangle be X m.
Breadth of rectangle = x/3 m
Perimeter of rectangle = 2 ( l + b)
=> 2 ( x + x/3 )
=> 2 ( 4x/3 ) m
Given that,
Perimeter of rectangle = 2/5 × 40 - 2.4
2 × ( 4X/3 ) = 16 - 2.4
8x/3 = 13.6
8x = 40.8
x = (40.8/8)
x = 5.1
Length of rectangle = X = 5.1 m
And,
Breadth of rectangle = X/3 = 5.1/3 = 1.7 m
Let length of rectangle be X m.
Breadth of rectangle = x/3 m
Perimeter of rectangle = 2 ( l + b)
=> 2 ( x + x/3 )
=> 2 ( 4x/3 ) m
Given that,
Perimeter of rectangle = 2/5 × 40 - 2.4
2 × ( 4X/3 ) = 16 - 2.4
8x/3 = 13.6
8x = 40.8
x = (40.8/8)
x = 5.1
Length of rectangle = X = 5.1 m
And,
Breadth of rectangle = X/3 = 5.1/3 = 1.7 m
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