Problem

2018 Cayley Problem 20

Abigail chooses an integer at random from the set \{2,4,6,8,10\}. Bill chooses an integer at random from the set \{2,4,6,8,10\}. Charlie chooses an integer at random from the set \{2,4,6,8,10\}. What is the probability that the product of their three integers is *not* a power of 2?

\textbf{(A)}\ \frac{117}{125}\quad \textbf{(B)}\ \frac{2}{5}\quad \textbf{(C)}\ \frac{98}{125}\quad \textbf{(D)}\ \frac{3}{5}\quad \textbf{(E)}\ \frac{64}{125}

If there are no answer choices shown, enter a numerical answer.


Full credit to this problem is given to the CEMC, you may view all Cayley contests here.


Show/Hide Problem Tags

Problem Tags: No tags

Want to contribute problems and receive full credit? Click here to add your problem!
Please report any issues to us in our Discord server
Go to previous contest problem (SHIFT + Left Arrow) Go to next contest problem (SHIFT + Right Arrow)