2009 AMC 8 Problems/Problem 12
Contents
[hide]Problem
The two spinners shown are spun once and each lands on one of the numbered sectors. What is the probability that the sum of the numbers in the two sectors is prime?
Solution
The possible sums are
Only is not prime, so there are prime numbers and total numbers for a probability of .
Video Solution
https://www.youtube.com/watch?v=NPTaWKEkaHs ~David
See Also
2009 AMC 8 (Problems • Answer Key • Resources) | ||
Preceded by Problem 11 |
Followed by Problem 13 | |
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