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Multiple choice

The average marks of 8 students in a test are 78. All the students got different integral marks, one of the students obtained 90 marks and all other students scored 70 or above. The maximum possible difference between the second highest and the second lowest marks is

  1. 18

  2. 19

  3. 20

  4. 21

Reveal answer Fill a bubble to check yourself
B Correct answer

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