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
The total weight of the contents in the box is 48 kg. 8 1 of the contents weighs 6 kg.
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