Using proportions, it is found that there are 3 pigs in a group, and two groups get an extra pig.
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
There are 14 pigs and 4 rooms, hence the number of pigs per room is given by:
n = 14/4 = 3.5 = 3 with a remainder of 2.
Hence, there are 3 pigs in a group, and two groups get an extra pig.
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