if the ratio of the beradth of a rectangle be 5:3 and its perimeter is 144 m, find thelenth of the rectangle
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2(L + B) = 144
2(5x + 3x) = 144
2(8x) = 144
16x = 144
x = 9
Length = 9 . 5 = 45
2(5x + 3x) = 144
2(8x) = 144
16x = 144
x = 9
Length = 9 . 5 = 45
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