Multiple choice

In an exam, 1 5 of class scored 7 8 of the maximum marks, 7 20 of class scored 1 4 of the maximum marks, 2 5 of the class scored 1 2 of the maximum marks, and the rest of the class scored 1 2 of the maximum marks. The average marks obtained by the whole class are 172. What are the maximum marks (approximately)?

  1. 520

  2. 420

  3. 353

  4. 220

  5. 331

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C Correct answer