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VTMO 2014 — Grade 7 — semifinal Question 6

VTMO · VTMO 2014 — Grade 7 — semifinal

Question 6

A sequence starts $1 , 2 , 3$; each later term is the sum of the previous three. Find term $8$.
  1. $11$
  2. $20$
  3. $37$
  4. $68$
  5. $99$