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A spinner contains the numbers 1 through 50. What is the probability that the spinner will land on a number that is not a multiple of 9?

User WebSeed
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\begin{gathered} Multiple\text{ of 9}\Rightarrow9,18,27,36,45(\text{ 5 number)} \\ Probability\text{ of getting these numbers}\Rightarrow(5)/(50)=0.1 \\ So, \\ \text{Probability of getting a number that not belon to multiple of 9,} \\ \Rightarrow1-.1=0.9 \end{gathered}

User Eran Boudjnah
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