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IKMC 2020 - Grades 9-10 - Self-study Question 12

IKMC · IKMC 2020 - Grades 9-10 - Self-study

Question 12

Integers a, b, c, d satisfy ab=2 cd. Which number cannot equal abcd?
  1. 50
  2. 100
  3. 200
  4. 450
  5. 800