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IKMC 2018 - Grades 11-12 - Self-study Question 19

IKMC · IKMC 2018 - Grades 11-12 - Self-study

Question 19

Three of the cards shown will be dealt to Nadia, the rest to Riny. Nadia multiplies the three values of her cards and Riny multiplies the two values of his cards. It turns out that the sum of those two products is a prime number. Determine the sum of the values of Nadia’s cards.

Question illustration
  1. 12
  2. 13
  3. 15
  4. 17
  5. 18