Difference between revisions of "FidgetBoss 4000's 2019 Mock AMC 12B Problems/Problem 4"
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<i>(fidgetboss_4000)</i> Mark rolled two standard dice. Given that he rolled two distinct values, find the probability that he rolled two primes. | <i>(fidgetboss_4000)</i> Mark rolled two standard dice. Given that he rolled two distinct values, find the probability that he rolled two primes. | ||
<math>\textbf{(A) }\frac{1}{12}\qquad\textbf{(B) }\frac{1}{7}\qquad\textbf{(C) }\frac{1}{5}\qquad\textbf{(D) }\frac{2}{5}\qquad\textbf{(E) }\frac{1}{2}\qquad</math> | <math>\textbf{(A) }\frac{1}{12}\qquad\textbf{(B) }\frac{1}{7}\qquad\textbf{(C) }\frac{1}{5}\qquad\textbf{(D) }\frac{2}{5}\qquad\textbf{(E) }\frac{1}{2}\qquad</math> | ||
Latest revision as of 23:04, 19 November 2020
Problem
(fidgetboss_4000) Mark rolled two standard dice. Given that he rolled two distinct values, find the probability that he rolled two primes.
Solution
There are 
different ways Mark could roll two distinct values. There are 
ways Mark could roll two distinct primes. Then, 
See also
| FidgetBoss 4000's 2019 Mock AMC 12B (Problems • Answer Key • Resources) | |
| Preceded by Problem 3 |
Followed by Problem 5 |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | |
| All AMC 12 Problems and Solutions | |
The problems on this page are copyrighted by FidgetBoss 4000's Mock American Mathematics Competitions. 
