Half of the floors have different numbers of apartments.

Half the number of floors is 12 floors / 2 = <<12/2=6>>6 floors.

One half of the block consists of 6 floors * 6 apartments/floor = <<6*6=36>>36 apartments.

And the other half consists of 6 floors * 5 apartments/floor = <<6*5=30>>30 apartments.

There are 30 + 36 = <<30+36=66>>66 apartments on all floors in the block.

All the apartments can therefore accommodate 66 apartments * 4 residents/apartment = <<66*4=264>>264 residents.

# Answer

264
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<|im_start|>user
In the city, there is a block of flats. This block has 12 floors. Half of the floors have 6 apartments and the other half have 5 apartments. One apartment can accommodate a maximum of 4 residents. What is the maximum number of residents that can live in this block of flats?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
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user
264
In the city, there is a block of flats. This block has 12 floors. Half of the floors have 6 apartments and the other half have 5 apartments. One apartment can accommodate a maximum of 4 residents. What is the maximum number of residents that can live in this block of flats?
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