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AMO 2021 — Secondary 1 (Grade 7) Question 12

AMO · AMO 2021 — Secondary 1 (Grade 7)

Question 12

A movie theatre has 40 people. Of them, 26 like popcorn but not chips, and 32 like popcorn. Everyone likes at least one of the two snacks. How many like both? Clarification: the source switches from “people” to “students”; all counts are interpreted as referring to the same 40 people.

Question illustration
  1. $6$
  2. $8$
  3. $32$
  4. $40$
  5. Indeterminate