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SASMO 2020 Grade 7 Question 14

SASMO · SASMO 2020 Grade 7

Question 14

Henry has 13 yellow, 7 brown, 25 red and 10 green balls in a bag. They have the same size and shape. What is the least number he must draw without looking to guarantee balls of three different colours?
  1. 3
  2. 20
  3. 39
  4. 48
  5. None of the above