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Lunna [17]
3 years ago
11

between 20 and 28 students signed up for the chess club. The students could not be divided exactly into groups of 2, 3, 4, and 5

. how many students signed up for the chess club?
Mathematics
1 answer:
Elenna [48]3 years ago
5 0
Possibilities
20,21,22,23,24,25,26,27,28
2 remove all even
21,23,25,27
3 rules out 21 and 27
 23,25
5 pulls out 25
23 is the answer
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