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AMO 2022 – Primary 6 (Grade 6) Question 4

AMO · AMO 2022 – Primary 6 (Grade 6)

Question 4

April makes seven bracelets. The first takes 5 minutes; each later bracelet takes 20% less time than the previous one. Find the total time, rounded to the nearest minute. Clarification: the source omits the percent sign after 20; its solution confirms 20%.

Question illustration
  1. 11 minutes
  2. 12 minutes
  3. 15 minutes
  4. 20 minutes
  5. 25 minutes