Q.2 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?
Let the breadth of the pool be x m.
According to the question, the length of the pool = 2x + 2 m.
Perimeter of rectangle = 2(l + b) = 154 m .
i.e., 2(2x + 2 + x) = 154
2(3x + 2) = 154
Dividing both sides by 2, we get
3x + 2 = 77
Now transposing 2 to the RHS, we get
3x = 77 - 2 = 75
Dividing both sides by 3, we get
Thus breadth of pool = 25 m
and length of the pool = 225 + 2 = 52 m