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A student scored 80, 90, and 70 in three subjects. What score does he need in th

Practice Questions

Q1
A student scored 80, 90, and 70 in three subjects. What score does he need in the fourth subject to have an average of 85?
  1. 90
  2. 95
  3. 100
  4. 85

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A student scored 80, 90, and 70 in three subjects. What score does he need in the fourth subject to have an average of 85?
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