the ratio of the perimeter to the breadth of a rectangle is 15:2. find the ratio of the length to the breadth
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perimeter = 2×(l+b)
2×(l+b)/b = 15/2
(l+b)/b = 15/4
4×l + 4×b = 15×b
4×l = 11×b
l/b = 11/4
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