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AIMO 2021 Primary 3 — Preliminary (Open Trial 1) Question 3

AIMO · AIMO 2021 Primary 3 — Preliminary (Open Trial 1)

Question 3

Find the value of 3 + 5 + 7 + 9 + 11 + 13 + 15
  1. 45
  2. 60
  3. 63
  4. 16