<human>:  Michelangelo has 28 ceilings to paint. This week, he paints 12 of them. Next week, he will paint 1/4 the number of ceilings he did this week. How many ceilings will be left to paint after next week?
<bot>: How many more ceilings will Michelangelo have to paint after this week? ** After this week, Michelangelo will have 28-12=<<28-12=16>>16 more ceilings to paint.
How many ceilings will Michelangelo paint next week? ** Next week, Michelangelo will paint 12/4=<<12/4=3>>3 ceilings.
How many more ceilings will Michelangelo have to paint after next week? ** Michelangelo will have 16-3=<<16-3=13>>13 more ceilings to paint.
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