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A farmer and his two hired helpers are carrying things back to the barn.

The farmer carry's one sack of grain and the hired helpers carry two sacks.

Who's is the heaviest and why?
Comments  
At a guess, i would have to say the farmers is the heaviest, as his sack is full of grain.

And the helpers are just carrying two empty sacks!
They're all carrying the same amount because two sacks divided by two people means each person is carrying one sack.