Interview Question for Trader Assistant at Chicago Trading Company:

1000-8^3=488

Its asking how many have no paint, so its just 512

1000....because they are placed INSIDE the 10x10x10 cube, thus the only cube getting painted is the big one.

1000- the number of cubes on the outside = 1000 - 2 sides - 2 other sides (not counting the cubes that were already counted by the 2 previous sides) - 2 remaining sides (not counting the cubes that were counted by the 4 previous sides) = 1000 - 200 - 160 - 128 = 512

or just count the number of cubes on the inside = 8^3 = 512