Find below the question. It is a mathematical question. So please give the answe

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There is a house shared by 3 people and the rent is $ 30/-. At the month end they gave $ 30 to the care-taker of the building to give to the owner. When the care-taker gave the money to the owner, he gave back $ 5 and asked him to give it back to the inmates. Instead of giving back $ 5, the care-taker took $ 2, and returned only $ 3 for them. That means each had to spend $ 9 totaling to $ 27. The care-taker took only $ 2-so it is 27+2=29. Now where is 1 dollar? Can anyone give me justification/answer for the missing 1 dollar?