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HKIMO 2026 Grade 5 National Preliminary Set 02 Question 6

HKIMO · HKIMO 2026 Grade 5 National Preliminary Set 02

Question 6

Find the value of $1+5+9+13+\cdots+113+117$.
  1. 1829
  2. 1770
  3. 3540
  4. 1740