The length of a rectangle is twice its breadth. If its length is decreased by 5 cm and breadth is increased by 5 cm, the area of the rectangle is increased by 75 sq.cm. What is the length of the rectangle? Choices.
A) 18 CM  B) 16 CM  C) 40 CM  D) 20 CM  E) 50 CM
LET BRESDTH X 40 CMM   LENGTH = 2X 40 CMM   NEW L = (2X-5) 40 CMM   NEW BREADTH = (X + 5)   NEW AREA = (2X - 5 ) SQ 40 CMM   = (2X - 5 ) (X + 5 ) = 2X2+75   X = 20 40 CMM   L = 2X - 2 = 2 * 20= 
<gadget id="calculator">2 * 20</gadget>
<output>40</output>
40 40 CMM   ANSWER 40 CM
<result>C</result>
The length of a rectangle is twice its breadth. If its length is decreased by 5 cm and breadth is increased by 5 cm, the area of the rectangle is increased by 75 sq.cm. What is the length of the rectangle?