In the reading room of a library, there are 10 tables, 4
chairs per table. In each table there are different numbers
of people seated. How many ways they will sit in the
library so that no chair would be blank?
plz explain how can this quetions can b solved???
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Answer Posted / archna tiwari
the ans. is 40,because totel no. of chair is 40,so there in only 40 way to sit on it.
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