In the reading room of a library, they are 23 reading spots. Each reading spot consists of a round table with 9 chairs placed around it. There some readers such that in each occupaid reading spot there are diffirent number of readers. If in all there are 36 readers, how many reading spots do not have even a single reader?

• this is an ambiguous question they have to specify maximum or minimum no of tables that should be empy?
• 12 years agoHelpfull: Yes(11) No(4)