A rectangle has a length that is double its width. If the length is reduced by 5 cm and the width is increased by 5 cm, what is the length of the rectangle?

Explanation

Given the length is twice the breadth, let the breadth be x cm and length be 2x cm. After decreasing length by 5 cm and increasing breadth by 5 cm, the new dimensions are (2x - 5) cm and (x + 5) cm respectively. Solving the resulting equations leads to the length being 40 cm.