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In the reading room of a library, there are23 reading spots.
Each reading spot consists of a round table with 9 chairs
placed around it. There are some readers such that in each
occupied reading spot there are different numbers of
readers. If in all there are 36 readers, how many reading
spots do not have even a single reader?
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Answer Posted / d乇乇pansh
AS ,There are some readers such that in each
occupied reading spot there are different numbers of
readers.
1+2+3+4+5+6+7+8= 36 readers
so ,8 spots have different readers.
remainings are 23-8= 15.
15 spots are empty.
| Is This Answer Correct ? | 154 Yes | 20 No |
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