Economy rate?

Question

Ken argues that container one has a greater economy rate because it is a cube. Nick argues that container two has a greater economy rate because its volume is greater.
Who is right and why?
Container one is a cube and has a length, width and height of 10cm.
Container two is a hexagonal prism and has a length of 5cm, width of 12.5cm and height of 20cm

Answer 1

I suppose your private definition of economy rate is volume divided by surface area? Then I think you can do the math yourself, but just in case...
ER1 = 10^3/(6*10^2) = 1.67
ER2 = 5*12.5*20 / (2*(5^2+12.5^2+20^2)) = 1.075
The plucky little cube wins.