Question

The perimeter of a rectangular swimming pool is 186 m. Its length is

3m more than thrice its breadth. What are the length and the breadth of

the pool?​

Answer 1

Answer:

$perimeter \: of \: a \: rectangular \: swimming \: pool \: = 186 \\ letthe \: breadth \: be \: x \: \\ length \: is \: 3 \: more \: than \: thrice \: its \: breadth \: = 3x + 3 \\ perimeter \: = 2(l + b) \\ 186 = 2(3x + 3 + x) \\ 186 = 2(4x + 3) \\ \frac{186}{2} = 4x + 3 \\ 93 = 4x + 3 \\ 93 - 3 = 4x \\ 90 = 4x \\ \frac{90}{4} = x \\ 22.5 = x \\ breadth = x \\ = 22.5 \\ length = 3x + 3 \\ 3(22.5) + 3 = 67.5 + 3 \\ = 70.5 \\ hope \: it \: helps \: u$

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