If 5/12 of the contents of a box weigh 20 kg, what is the weight of all the contents?

What would 1/8 of the contents weigh?

If 5 shares of the contents weigh 20, then each share weighs 4. If each share is 1/12 of the whole thing, then there are 12 shares in it, and the whole thing weighs 12 x 4 = 48. 1/8 of it weighs 48/8 = 6. 1/8 of it