Duel of Two 50% Marksmen: Odds in favor of the man who shoots first
Problem
Smith and Jones, both 50% marksmen, decide to fight a duel in which they exchange alternate shots until one is hit. What are the odds in favor of the man who shoots first?
| A. 1/3 | C. 2/3 |
| B. 1/2 | D. 1/4 |