It is my estimate that way less than 25% of the adult population of the world have disciplined their minds to solve a problem like the one I solved.
Volume of the Cylinder = (pi) (r^2) (h) = (pi) ((r(1+0.25))^2) (h(1-%))
1 = (1.25^2) (1-%)
0.64 = 1 - %
% = 1 - 0.64
% = 0.36 , final answer
If we mean 1+0.25 by "diameter of the can is increased by 25%"
then 1 - % is the meaning of "height of the can is decreased by what percent"
any other interpretation would "be highly illogical"(-Spock).
I watched the 2012 version of Wolverines on DVD this evening. I think our Govt and Corp Leaders had better start doing much more to protect the American way of life. Just sayin'.