Junior Cycle · Sets ⏱ Tested in 2 exam questions since 2022 Lesson 8 of 8

JCHL Sets 8: Set Problems

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You’ll learn

  • For a three-set Venn diagram, work from the MIDDLE outwards: all three first, then the pairs, then the singles, then outside
  • An overlap total (e.g. "study chemistry and physics") usually INCLUDES the centre — subtract the centre to get the pair-only region
  • The numbers written in are COUNTS (how many elements), not the elements themselves

Most recent exam questions

  • 2025 Q10(a)(i)
  • 2025 Q10(a)(ii)
  • 2022 Q6

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