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VTMO 2021 — Grade 9 — vtmo Question 4

VTMO · VTMO 2021 — Grade 9 — vtmo

Question 4

Integers $a , b$ satisfy $3 a + b = 30$. Minimize $3$ a $^{2} + b^{2}$.
  1. $224$
  2. $225$
  3. $226$
  4. $227$
  5. $228$