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AMO 2017 – Secondary 1 (Grade 7) Question 8

AMO · AMO 2017 – Secondary 1 (Grade 7)

Question 8

The spinner shown is divided into $5$ equal parts. Spin the needle once. If it lands on a perfect square number, flip a fair coin once. If it lands on a prime number, do not flip the coin. What is the probability that you flipped a coin and it landed heads up? If your answer is $p/q$ in simplest form, write $p+q$.

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