50 students of a certain class took a test. How many of them

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Source: — Data Sufficiency |

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by Ian Stewart » Mon May 13, 2019 4:56 am

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A

B

C

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E

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Using both Statements, it's possible all 50 students got a score of '82', or it's possible that 25 of them got '81' and 25 of them got '83', among other possibilities. So the answer is E.
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