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AMO 2016 Grade 3 Question 6

AMO · AMO 2016 Grade 3

Question 6

The clock at Bernoulli Towers is slow. Every day, at noon, Karan corrects it from 11:30 am to 12:00 pm. When Karan went on vacation for 6 consecutive days (6 days in a row), he accidentally took the key with him. With no one to reset the clock, it fell far behind. When Karan returned after vacation to correct the clock to noon, what time did the clock show?