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VTMO 2015 — Grade 3 — semifinal Question 13

VTMO · VTMO 2015 — Grade 3 — semifinal

Question 13

Pi writes the natural numbers $1$ through $40$. How many are divisible by $2$ but not by $5$?
  1. $4$
  2. $14$
  3. $15$
  4. $16$
  5. $20$