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A man took two buckets to fetch water. One bucket can hold 3 kilograms of water, and the other bucket.
1. Fill the 3kg barrel first, pour it into the vat, then take 3kg of water and fill the vat, so that there is 1kg left in the small bucket. Empty the vat, pour in 1kg and then pour in 3kg.

2. 13/ 12 Everyone, that is, 6/12+4/12+3/12.

If it is1/2+1/3+1/4, each person will take1/2+1/4 apples.