The perimeter of a rectangular swimming pool is 154 m. Its length is 2 m more than twice its breadth. What are the length and the breadth of the pool?
Perimeter of the rectangular pool = 154 m
Let breadth = x metres
∴ Length = 2(breadth) + 2 metres.
= (2x + 2) metres.
Since, perimeter of a rectangle = 2(length + breadth)
∴ 2[(2x+2) + x] = 154
or (2x + 2) + x = (Dividing both sides by 2)
or 2x + 2 + x = 77
or 3x + 2 = 77
Transposing 2 to RHS, we have
3x = 77 - 2 = 75
Dividing both sides by 3, we have
∴ Breadth = 25 m
Length = 2(25) + 2 = 52 m
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