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VTMO 2016 — Grade 2 — semifinal Question 4

VTMO · VTMO 2016 — Grade 2 — semifinal

Question 4

Class starts at $17 : 45$ and the trip takes $20$ minutes. When must Dung leave?
  1. $17 : 15$
  2. $17 : 20$
  3. $17 : 25$
  4. $17 : 30$
  5. $17 : 35$