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HKIMO 2026 Grade 8 National Preliminary Set 03 Question 4

HKIMO · HKIMO 2026 Grade 8 National Preliminary Set 03

Question 4

Given $A:B=5:2$, $B:C=1:2$ and $A+B+C=55$, find $B$.
  1. 10
  2. 20
  3. 25
  4. 15