Skip to content / Đến nội dung
ThichHocToan.com

VTMO 2017 — Grade 2 — semifinal Question 5

VTMO · VTMO 2017 — Grade 2 — semifinal

Question 5

Floors $2$ to $4$ require $22$ steps. How many from $1$ to $6$, with equal floor intervals?
  1. $66$
  2. $55$
  3. $44$
  4. $33$
  5. $77$