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VTMO 2026 - Grade 9 - Semifinal - SET 09 - Self-study Question 5

VTMO · VTMO 2026 - Grade 9 - Semifinal - SET 09 - Self-study

Question 5

A field contains cows and ducks. An counts 200 heads and Bình 522 legs. How many cows and ducks are there?
  1. 61 cows and139 ducks
  2. 139 cows and61 ducks
  3. 60 cows and140 ducks
  4. 62 cows and138 ducks
  5. 61 ducks and139 cows