Question

In a rectangle, the length is halved and breadth is doubled. If it's new dimensions are 24 cm and 18 cm, then find the old perimeter of the rectangle.​

Answer 1

The new dimensions of the rectangle are 24 cm and 18 cm.

The original length is 24 × 2 = 48 cm, and the breadth is 18/2 = 9 cm.

The perimeter of the rectangle is

2(48 + 9) = 2 × 57 = 114 cm.