KöMaL 2015 K457
(According to a Hungarian poem for children ( http://www.mdche.u-szeged.hu/kovacs/sheepshrine_f.html ) it is a rule in the school for young sheep that students get an award for every day they do not attend the classes. On Monday, 10% of the students were absent. On Tuesday, 10% of those absent on Monday returned, but 10% of those present on Monday stayed at home. What percentage of the students will not get a reward for Tuesday?
Official text KöMaL. Quoted with source.
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