What will be the percentage increase in the area of the cube's surface if each of the cube's edges grows by 40%?  Pick one
A) 95%	B) 90%	C) 85%	D) 96%	E) 25%
The question is very easy. My logic is the following:   A surface = 6*a^2   After 40% increase A surface = 6* ((1.4a)^2) = 6*1.96*a^2   The increase in the surface area = (6*1.96*a^2 - 6*a^2)/6*a^2 = (6*a^2(1.96-1))/(6*a^2) = 1.96-1= 
<gadget id="calculator">1.96-1</gadget>
<output>0.96</output>
0.96= 96%   Answer :96%
<result>D</result>
What will be the percentage increase in the area of the cube's surface if each of the cube's edges grows by 40%?