The length of a rectangle is twice its breadth. If its length is decreased by 4 cm and breadth is increased by 5 cm, the area of the rectangle is increased by 75 sq. cm. Find the length of the rectangle.	Select the correct option.
A) 10/3cm B) 20/3cm C) 20cm D) 16cm E) 14cm
Explanation:   Let breadth = x. Then, length = 2x. Then,   (2x - 4) (x + 5) - 2x * x = 75 =&gt; 6x - 25 = 75 =&gt; x =20/3.   Length of the rectangle = 20/3 cm.   Answer: Option 20/3cm
<result>B</result>
The length of a rectangle is twice its breadth. If its length is decreased by 4 cm and breadth is increased by 5 cm, the area of the rectangle is increased by 75 sq. cm. Find the length of the rectangle.