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IKMC 2012 - Grades 9-10 - Self-study Question 16

IKMC · IKMC 2012 - Grades 9-10 - Self-study

Question 16

How many four-digit integers have hundreds digit 3 and the sum of the other three digits also 3?
  1. 2
  2. 3
  3. 4
  4. 5
  5. 6