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VTMO 2013 — Grade 6 — semifinal Question 4

VTMO · VTMO 2013 — Grade 6 — semifinal

Question 4

Reduce every side of a square garden by $10 \%$. What percentage decrease in area results?
  1. $20 \%$
  2. $9 \%$
  3. $81 \%$
  4. $19 \%$
  5. $10 \%$