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The average of 10 students is 80. The average becomes 85 after adding 5 more students. What is the total marks of the 5 new students?
  1. 425
  2. 475
  3. 500
  4. None of these
Explanation

Total marks of 10 students = 10 × 80 = 800

Total marks of 15 students = 15 × 85 = 1275

Total marks of 5 new students = 1275 - 800 = 475


Last verified on 23-10-2026

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